--- a/src/bin/admin/Makefile.am
+++ b/src/bin/admin/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 # Install kea-admin in sbin.
 sbin_SCRIPTS  = kea-admin
--- a/src/bin/agent/Makefile.am
+++ b/src/bin/agent/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += -I$(top_srcdir)/src/bin -I$(top_builddir)/src/bin
--- a/src/bin/d2/Makefile.am
+++ b/src/bin/d2/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += -I$(top_srcdir)/src/bin -I$(top_builddir)/src/bin
--- a/src/bin/dhcp4/Makefile.am
+++ b/src/bin/dhcp4/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += -I$(top_srcdir)/src/bin -I$(top_builddir)/src/bin
--- a/src/bin/dhcp6/Makefile.am
+++ b/src/bin/dhcp6/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += -I$(top_srcdir)/src/bin -I$(top_builddir)/src/bin
--- a/src/bin/keactrl/Makefile.am
+++ b/src/bin/keactrl/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 # Install keactrl in sbin and the keactrl.conf required by the keactrl
 # in etc. keactrl will look for its configuration file in the etc folder.
--- a/src/bin/lfc/Makefile.am
+++ b/src/bin/lfc/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += -I$(top_srcdir)/src/bin -I$(top_builddir)/src/bin
--- a/src/bin/netconf/Makefile.am
+++ b/src/bin/netconf/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += -I$(top_srcdir)/src/bin -I$(top_builddir)/src/bin
--- a/src/bin/perfdhcp/Makefile.am
+++ b/src/bin/perfdhcp/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += -I$(top_srcdir)/src/bin -I$(top_builddir)/src/bin
--- a/src/bin/shell/Makefile.am
+++ b/src/bin/shell/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 pkgpython_PYTHON = kea_conn.py kea_connector3.py
 
--- a/src/hooks/dhcp/high_availability/Makefile.am
+++ b/src/hooks/dhcp/high_availability/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . libloadtests tests
+SUBDIRS = . libloadtests
 
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES) $(CRYPTO_CFLAGS) $(CRYPTO_INCLUDES)
--- a/src/hooks/dhcp/lease_cmds/Makefile.am
+++ b/src/hooks/dhcp/lease_cmds/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests libloadtests
+SUBDIRS = . libloadtests
 
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/hooks/dhcp/stat_cmds/Makefile.am
+++ b/src/hooks/dhcp/stat_cmds/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests libloadtests
+SUBDIRS = . libloadtests
 
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/hooks/dhcp/user_chk/Makefile.am
+++ b/src/hooks/dhcp/user_chk/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/asiodns/Makefile.am
+++ b/src/lib/asiodns/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS  = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/asiolink/Makefile.am
+++ b/src/lib/asiolink/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . testutils tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES) $(CRYPTO_CFLAGS) $(CRYPTO_INCLUDES)
--- a/src/lib/cc/Makefile.am
+++ b/src/lib/cc/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/config/Makefile.am
+++ b/src/lib/config/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES) $(CRYPTO_CFLAGS) $(CRYPTO_INCLUDES)
--- a/src/lib/config_backend/Makefile.am
+++ b/src/lib/config_backend/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/cryptolink/Makefile.am
+++ b/src/lib/cryptolink/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES) $(CRYPTO_CFLAGS) $(CRYPTO_INCLUDES)
--- a/src/lib/database/Makefile.am
+++ b/src/lib/database/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . testutils tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/dhcp/Makefile.am
+++ b/src/lib/dhcp/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . testutils tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/dhcp_ddns/Makefile.am
+++ b/src/lib/dhcp_ddns/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/dhcpsrv/Makefile.am
+++ b/src/lib/dhcpsrv/Makefile.am
@@ -1,6 +1,6 @@
 AUTOMAKE_OPTIONS = subdir-objects
 
-SUBDIRS = . testutils tests
+SUBDIRS = .
 
 # DATA_DIR is the directory where to put default CSV files and the DHCPv6
 # server ID file (i.e. the file where the server finds its DUID at startup).
--- a/src/lib/dns/Makefile.am
+++ b/src/lib/dns/Makefile.am
@@ -1,6 +1,6 @@
 AUTOMAKE_OPTIONS = subdir-objects
 
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/eval/Makefile.am
+++ b/src/lib/eval/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/exceptions/Makefile.am
+++ b/src/lib/exceptions/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CXXFLAGS=$(KEA_CXXFLAGS)
--- a/src/lib/hooks/Makefile.am
+++ b/src/lib/hooks/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/http/Makefile.am
+++ b/src/lib/http/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES) $(CRYPTO_CFLAGS) $(CRYPTO_INCLUDES)
--- a/src/lib/log/Makefile.am
+++ b/src/lib/log/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = interprocess . compiler tests
+SUBDIRS = interprocess . compiler
 
 AM_CPPFLAGS = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/log/interprocess/Makefile.am
+++ b/src/lib/log/interprocess/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += -DLOCKFILE_DIR=\"$(localstatedir)/run/$(PACKAGE_NAME)\"
--- a/src/lib/mysql/Makefile.am
+++ b/src/lib/mysql/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . testutils tests
+SUBDIRS = .
 
 AM_CPPFLAGS  =
 AM_CPPFLAGS += -DKEA_ADMIN=\"@prefix@/sbin/kea-admin\"
--- a/src/lib/pgsql/Makefile.am
+++ b/src/lib/pgsql/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . testutils tests
+SUBDIRS = .
 
 AM_CPPFLAGS  =
 AM_CPPFLAGS += -DKEA_ADMIN=\"@prefix@/sbin/kea-admin\"
--- a/src/lib/process/Makefile.am
+++ b/src/lib/process/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = cfgrpt . testutils tests
+SUBDIRS = cfgrpt . testutils
 # DATA_DIR is the directory where to put PID files.
 dhcp_data_dir = @runstatedir@/@PACKAGE@
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
--- a/src/lib/stats/Makefile.am
+++ b/src/lib/stats/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests testutils
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/util/Makefile.am
+++ b/src/lib/util/Makefile.am
@@ -1,6 +1,6 @@
 AUTOMAKE_OPTIONS = subdir-objects
 
-SUBDIRS = . io unittests tests python
+SUBDIRS = . io unittests python
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/yang/Makefile.am
+++ b/src/lib/yang/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . testutils pretests tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/hooks/dhcp/bootp/Makefile.am
+++ b/src/hooks/dhcp/bootp/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests libloadtests
+SUBDIRS = . libloadtests
 
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/hooks/dhcp/flex_option/Makefile.am
+++ b/src/hooks/dhcp/flex_option/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . libloadtests tests
+SUBDIRS = . libloadtests
 
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/hooks/dhcp/mysql_cb/Makefile.am
+++ b/src/hooks/dhcp/mysql_cb/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests libloadtests
+SUBDIRS = . libloadtests
 
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES) $(MYSQL_CPPFLAGS)
--- a/src/hooks/dhcp/pgsql_cb/Makefile.am
+++ b/src/hooks/dhcp/pgsql_cb/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests libloadtests
+SUBDIRS = . libloadtests
 
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES) $(PGSQL_CPPFLAGS)
--- a/src/hooks/dhcp/run_script/Makefile.am
+++ b/src/hooks/dhcp/run_script/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . libloadtests tests
+SUBDIRS = . libloadtests
 
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/d2srv/Makefile.am
+++ b/src/lib/d2srv/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . testutils tests
+SUBDIRS = . testutils
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
--- a/src/lib/process/cfgrpt/Makefile.am
+++ b/src/lib/process/cfgrpt/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CXXFLAGS  = $(KEA_CXXFLAGS)
--- a/src/lib/tcp/Makefile.am
+++ b/src/lib/tcp/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = . tests
+SUBDIRS = .
 
 AM_CPPFLAGS  = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES) $(CRYPTO_CFLAGS) $(CRYPTO_INCLUDES)