diff --git a/openbsc/tests/channel/Makefile.am b/openbsc/tests/channel/Makefile.am
index 8e57b8d..7729659 100644
--- a/openbsc/tests/channel/Makefile.am
+++ b/openbsc/tests/channel/Makefile.am
@@ -1,5 +1,5 @@
 INCLUDES = $(all_includes) -I$(top_srcdir)/include
-AM_CFLAGS=-Wall -ggdb3
+AM_CFLAGS=-Wall -ggdb3 $(LIBOSMOCORE_CFLAGS)
 
 noinst_PROGRAMS = channel_test
 
diff --git a/openbsc/tests/db/Makefile.am b/openbsc/tests/db/Makefile.am
index 85f2c14..6eb9180 100644
--- a/openbsc/tests/db/Makefile.am
+++ b/openbsc/tests/db/Makefile.am
@@ -1,5 +1,5 @@
 INCLUDES = $(all_includes) -I$(top_srcdir)/include
-AM_CFLAGS=-Wall -ggdb3
+AM_CFLAGS=-Wall -ggdb3 $(LIBOSMOCORE_CFLAGS)
 
 noinst_PROGRAMS = db_test
 
diff --git a/openbsc/tests/debug/Makefile.am b/openbsc/tests/debug/Makefile.am
index 86cd7b3..8423fd1 100644
--- a/openbsc/tests/debug/Makefile.am
+++ b/openbsc/tests/debug/Makefile.am
@@ -1,4 +1,5 @@
 INCLUDES = $(all_includes) -I$(top_srcdir)/include
+AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS)
 noinst_PROGRAMS = debug_test
 
 debug_test_SOURCES = debug_test.c $(top_srcdir)/src/debug.c 
diff --git a/openbsc/tests/gsm0408/Makefile.am b/openbsc/tests/gsm0408/Makefile.am
index 44ca96c..f98c673 100644
--- a/openbsc/tests/gsm0408/Makefile.am
+++ b/openbsc/tests/gsm0408/Makefile.am
@@ -1,4 +1,5 @@
 INCLUDES = $(all_includes) -I$(top_srcdir)/include
+AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS)
 noinst_PROGRAMS = gsm0408_test
 
 gsm0408_test_SOURCES = gsm0408_test.c
diff --git a/openbsc/tests/sccp/Makefile.am b/openbsc/tests/sccp/Makefile.am
index 4152a9a..b35693e 100644
--- a/openbsc/tests/sccp/Makefile.am
+++ b/openbsc/tests/sccp/Makefile.am
@@ -1,5 +1,5 @@
 INCLUDES = $(all_includes) -I$(top_srcdir)/include
-AM_CFLAGS=-Wall -ggdb3
+AM_CFLAGS=-Wall -ggdb3 $(LIBOSMOCORE_CFLAGS)
 
 noinst_PROGRAMS = sccp_test