diff --git a/tests/ctags/runner.sh b/tests/ctags/runner.sh
index 695d517c15..058f5c60b9 100755
--- a/tests/ctags/runner.sh
+++ b/tests/ctags/runner.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 # error out on undefined variable expansion, useful for debugging
 set -u