diff --git a/tools/killall5.in b/tools/killall5.in
index a4b6f2c..f896b83 100644
--- a/tools/killall5.in
+++ b/tools/killall5.in
@@ -43,6 +43,8 @@ pids_exist() {
 			return 0
 		fi
 	done
+
+	return 1
 }
 
 pid_wait() {