diff --git a/parm/config/gfs/config.aero b/parm/config/gfs/config.aero
index d1b17751f5..fbd2d86ac8 100644
--- a/parm/config/gfs/config.aero
+++ b/parm/config/gfs/config.aero
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#! /usr/bin/env bash
 
 # UFS-Aerosols settings