diff --git a/git-instaweb.sh b/git-instaweb.sh
index 5c700b61a8..a8c5dc0ee2 100755
--- a/git-instaweb.sh
+++ b/git-instaweb.sh
@@ -114,6 +114,7 @@ EOF
 
 stop_httpd () {
 	test -f "$fqgitdir/pid" && kill $(cat "$fqgitdir/pid")
+	rm -f "$fqgitdir/pid"
 }
 
 while test $# != 0