diff --git a/libknet/tests/Makefile.am b/libknet/tests/Makefile.am
index 37f5935f..86312072 100644
--- a/libknet/tests/Makefile.am
+++ b/libknet/tests/Makefile.am
@@ -1,104 +1,104 @@
 #
 # Copyright (C) 2016-2020 Red Hat, Inc.  All rights reserved.
 #
 # Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
 #
 # This software licensed under GPL-2.0+
 #
 
 MAINTAINERCLEANFILES	= Makefile.in
 
 include $(top_srcdir)/build-aux/check.mk
 include $(top_srcdir)/libknet/tests/api-check.mk
 
 EXTRA_DIST		= \
 			  api-test-coverage \
 			  api-check.mk
 
 AM_CPPFLAGS		= -I$(top_srcdir)/libknet
-AM_CFLAGS		+= $(PTHREAD_CFLAGS)
+AM_CFLAGS		+= $(PTHREAD_CFLAGS) $(libqb_CFLAGS)
 LIBS			= $(top_builddir)/libknet/libknet.la \
 			  $(PTHREAD_LIBS) $(dl_LIBS)
 
 noinst_HEADERS		= \
 			  test-common.h
 
 # the order of those tests is NOT random.
 # some functions can only be tested properly after some dependents
 # API have been validated upfront.
 
 check_PROGRAMS		= \
 			  $(api_checks) \
 			  $(int_checks) \
 			  $(fun_checks)
 
 int_checks		= \
 			  int_links_acl_ip_test \
 			  int_timediff_test
 
 fun_checks		=
 
 # checks below need to be executed manually
 # or with a specifi environment
 
 long_run_checks		= \
 			  fun_pmtud_crypto_test
 
 benchmarks		= \
 			  knet_bench_test
 
 noinst_PROGRAMS		= \
 			  api_knet_handle_new_limit_test \
 			  pckt_test \
 			  $(benchmarks) \
 			  $(long_run_checks) \
 			  $(check_PROGRAMS)
 
 noinst_SCRIPTS		= \
 			  api-test-coverage
 
 TESTS			= $(check_PROGRAMS)
 
 if INSTALL_TESTS
 testsuitedir		= $(TESTDIR)
 testsuite_PROGRAMS	= $(noinst_PROGRAMS)
 endif
 
 check-local: check-api-test-coverage
 
 check-api-test-coverage:
 	chmod u+x $(top_srcdir)/libknet/tests/api-test-coverage
 	$(top_srcdir)/libknet/tests/api-test-coverage $(top_srcdir) $(top_builddir)
 
 pckt_test_SOURCES	= pckt_test.c
 
 int_links_acl_ip_test_SOURCES = int_links_acl_ip.c \
 				../common.c \
 				../compat.c \
 				../logging.c \
 				../netutils.c \
 				../threads_common.c \
 				../onwire.c \
 				../transports.c \
 				../transport_common.c \
 				../transport_loopback.c \
 				../transport_sctp.c \
 				../transport_udp.c \
 				../links_acl.c \
 				../links_acl_ip.c \
 				../links_acl_loopback.c
 
 int_timediff_test_SOURCES = int_timediff.c
 
 knet_bench_test_SOURCES	= knet_bench.c \
 			  test-common.c \
 			  ../common.c \
 			  ../logging.c \
 			  ../compat.c \
 			  ../transport_common.c \
 			  ../threads_common.c \
 			  ../onwire.c
 
 fun_pmtud_crypto_test_SOURCES = fun_pmtud_crypto.c \
 				test-common.c \
 				../onwire.c