diff --git a/unit_tests/rules.mk b/unit_tests/rules.mk
index 7bb3784..9c93009 100644
--- a/unit_tests/rules.mk
+++ b/unit_tests/rules.mk
@@ -86,3 +86,10 @@ clean:
 	@echo Cleaning
 	-rm -fR .dep $(BUILDDIR)
 	@echo Done
+
+#
+# Include the dependency files, should be the last of the makefile
+#
+-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
+
+# *** EOF ***