diff --git a/po/Makefile b/po/Makefile
index b271f79ba2..7bab09dce2 100644
--- a/po/Makefile
+++ b/po/Makefile
@@ -32,7 +32,7 @@ update: $(SRCS)
 build: $(OBJS)
 
 clean:
-	$(RM) $(OBJS)
+	rm -f $(OBJS)
 
 install: $(OBJS)
 	for obj in $(OBJS); do \