diff --git a/wmtime/wmtime/Makefile b/wmtime/wmtime/Makefile
index 85bb745..35ac1ba 100755
--- a/wmtime/wmtime/Makefile
+++ b/wmtime/wmtime/Makefile
@@ -17,9 +17,9 @@ wmtime: $(OBJS) $(XPMS)
 
 clean::
 	for i in $(OBJS) ; do \
-		rm $$i; \
+		rm -f $$i; \
 	done
-	rm wmtime
+	rm -f wmtime
 
 install:: wmtime
-	install -m 755 wmtime $(DESTDIR)/usr/bin
\ No newline at end of file
+	install -m 755 wmtime $(DESTDIR)/usr/bin