diff --git a/tests/Makefile.common b/tests/Makefile.common
index a8bb19c4f1..cfb6fe945e 100644
--- a/tests/Makefile.common
+++ b/tests/Makefile.common
@@ -157,7 +157,7 @@ $($(1)-sysobjs): $(testobj)/$(1)/%.o: $$$$*.c $$($(1)-config-file)
 
 # Link against Cmocka if not disabled
 ifeq ($(strip $(filter-out 0 n no,$($(1)-no_test_framework))),)
-ifneq ($(USE_SYSTEM_CMOCKA),)
+ifneq ($(USE_SYSTEM_CMOCKA),1)
 $($(1)-objs): TEST_CFLAGS += -I$(cmockasrc)/include
 $($(1)-bin): TEST_LDFLAGS += -L$(cmockaobj)/src -Wl,-rpath=$(cmockaobj)/src
 $($(1)-bin): TEST_CFLAGS += -I$(cmockasrc)/include