diff --git a/gtk/resources/theme/Adwaita/parse-sass.sh b/gtk/resources/theme/Adwaita/parse-sass.sh
index cc1c40fcab..2486480802 100755
--- a/gtk/resources/theme/Adwaita/parse-sass.sh
+++ b/gtk/resources/theme/Adwaita/parse-sass.sh
@@ -1,3 +1,3 @@
-#! /usr/bin/which bash
+#!/usr/bin/bash
 
 sass --update .