diff --git a/unit_tests/rules.mk b/unit_tests/rules.mk
index d03a25cde7..1f940eda1d 100644
--- a/unit_tests/rules.mk
+++ b/unit_tests/rules.mk
@@ -150,7 +150,7 @@ else
 endif
 
 $(SHARED_OUTPUT): $(OBJS)
-	@echo Linking shared library $@ output $SHARED_OUTPUT_OPT
+	@echo Linking shared library $@ output $(SHARED_OUTPUT_OPT)
 	@$(LD) $(OBJS) $(LDFLAGS) $(LIBS) -o $SHARED_OUTPUT_OPT -shared
 
 clean: CLEAN_RULE_HOOK