diff --git a/t/t7005-editor.sh b/t/t7005-editor.sh
index 28643b0da4..b21ced1bc2 100755
--- a/t/t7005-editor.sh
+++ b/t/t7005-editor.sh
@@ -7,6 +7,7 @@ test_description='GIT_EDITOR, core.editor, and stuff'
 for i in GIT_EDITOR core_editor EDITOR VISUAL vi
 do
 	cat >e-$i.sh <<-EOF
+	#!/bin/sh
 	echo "Edited by $i" >"\$1"
 	EOF
 	chmod +x e-$i.sh