diff --git a/make/cache.mk b/make/cache.mk
index f8db4368..faa9675a 100644
--- a/make/cache.mk
+++ b/make/cache.mk
@@ -21,4 +21,4 @@ endif
 endif
 clean: clean-cache
 clean-cache:
-	$(RM) -f $(CACHE_FILE_MK)
+	rm -f $(CACHE_FILE_MK)