diff --git a/.github/scripts/reclaim-docker-diskspace.sh b/.github/scripts/reclaim-docker-diskspace.sh
index 2fb1007f5d..e32f3b1d8c 100755
--- a/.github/scripts/reclaim-docker-diskspace.sh
+++ b/.github/scripts/reclaim-docker-diskspace.sh
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 echo "Reclaiming Docker Disk Space"
 echo