diff --git a/src/backend/common.mk b/src/backend/common.mk
index 4e0a5da3334..4f8771d46df 100644
--- a/src/backend/common.mk
+++ b/src/backend/common.mk
@@ -44,3 +44,5 @@ $(call recurse,clean)
 clean: clean-local
 clean-local:
 	rm -f $(subsysfilename) $(OBJS)
+
+$(call recurse,coverage)