diff --git a/src/bin/d2/tests/Makefile.am b/src/bin/d2/tests/Makefile.am
index 1b2a3e50f4..72373b7cc6 100644
--- a/src/bin/d2/tests/Makefile.am
+++ b/src/bin/d2/tests/Makefile.am
@@ -23,7 +23,6 @@ AM_CPPFLAGS += -I$(top_srcdir)/src/bin
 AM_CPPFLAGS += -I$(top_builddir)/src/lib/cc
 AM_CPPFLAGS += -I$(top_srcdir)/src/lib/asiolink
 AM_CPPFLAGS += $(BOOST_INCLUDES)
-AM_CPPFLAGS += -DTEST_DATA_DIR=\"$(abs_top_srcdir)/src/lib/testutils/testdata\"
 AM_CPPFLAGS += -DTEST_DATA_BUILDDIR=\"$(abs_top_builddir)/src/bin/d2/tests\"
 AM_CPPFLAGS += -DINSTALL_PROG=\"$(abs_top_srcdir)/install-sh\"
 
diff --git a/src/bin/dhcp4/tests/Makefile.am b/src/bin/dhcp4/tests/Makefile.am
index f4a025c687..75533d0037 100644
--- a/src/bin/dhcp4/tests/Makefile.am
+++ b/src/bin/dhcp4/tests/Makefile.am
@@ -22,7 +22,6 @@ AM_CPPFLAGS += -I$(top_srcdir)/src/bin
 AM_CPPFLAGS += -I$(top_builddir)/src/lib/cc
 AM_CPPFLAGS += -I$(top_srcdir)/src/lib/asiolink
 AM_CPPFLAGS += $(BOOST_INCLUDES)
-AM_CPPFLAGS += -DTEST_DATA_DIR=\"$(abs_top_srcdir)/src/lib/testutils/testdata\"
 AM_CPPFLAGS += -DTEST_DATA_BUILDDIR=\"$(abs_top_builddir)/src/bin/dhcp4/tests\"
 AM_CPPFLAGS += -DINSTALL_PROG=\"$(abs_top_srcdir)/install-sh\"
 
diff --git a/src/bin/dhcp6/tests/Makefile.am b/src/bin/dhcp6/tests/Makefile.am
index 335fd075ae..173605219e 100644
--- a/src/bin/dhcp6/tests/Makefile.am
+++ b/src/bin/dhcp6/tests/Makefile.am
@@ -22,7 +22,6 @@ AM_CPPFLAGS += -I$(top_builddir)/src/bin # for generated spec_config.h header
 AM_CPPFLAGS += -I$(top_srcdir)/src/bin
 AM_CPPFLAGS += -DTOP_BUILDDIR="\"$(top_builddir)\""
 AM_CPPFLAGS += $(BOOST_INCLUDES)
-AM_CPPFLAGS += -DTEST_DATA_DIR=\"$(abs_top_srcdir)/src/lib/testutils/testdata\"
 AM_CPPFLAGS += -DTEST_DATA_BUILDDIR=\"$(abs_top_builddir)/src/bin/dhcp6/tests\"
 AM_CPPFLAGS += -DINSTALL_PROG=\"$(abs_top_srcdir)/install-sh\"
 
diff --git a/src/bin/lfc/tests/Makefile.am b/src/bin/lfc/tests/Makefile.am
index 5a9b220e38..6aa15585e0 100644
--- a/src/bin/lfc/tests/Makefile.am
+++ b/src/bin/lfc/tests/Makefile.am
@@ -18,7 +18,6 @@ AM_CPPFLAGS += -I$(top_srcdir)/src/bin
 AM_CPPFLAGS += -I$(top_builddir)/src/lib/cc
 AM_CPPFLAGS += -I$(top_srcdir)/src/lib/asiolink
 AM_CPPFLAGS += $(BOOST_INCLUDES)
-AM_CPPFLAGS += -DTEST_DATA_DIR=\"$(abs_top_srcdir)/src/lib/testutils/testdata\"
 AM_CPPFLAGS += -DTEST_DATA_BUILDDIR=\"$(abs_top_builddir)/src/bin/lfc/tests\"
 AM_CPPFLAGS += -DINSTALL_PROG=\"$(abs_top_srcdir)/install-sh\"
 
diff --git a/src/lib/config/tests/Makefile.am b/src/lib/config/tests/Makefile.am
index 3a0e0fd34f..65ce125403 100644
--- a/src/lib/config/tests/Makefile.am
+++ b/src/lib/config/tests/Makefile.am
@@ -2,7 +2,6 @@ SUBDIRS = testdata .
 
 AM_CPPFLAGS = -I$(top_builddir)/src/lib -I$(top_srcdir)/src/lib
 AM_CPPFLAGS += $(BOOST_INCLUDES)
-AM_CPPFLAGS += -DTEST_DATA_DIR=\"$(abs_top_srcdir)/src/lib/testutils/testdata\"
 AM_CPPFLAGS += -DTEST_DATA_BUILDDIR=\"$(abs_top_builddir)/src/lib/config/tests\"
 
 AM_CXXFLAGS = $(KEA_CXXFLAGS)