diff --git a/utils/gen_modules_docs.sh b/utils/gen_modules_docs.sh
index de1d9319..f51dbe93 100644
--- a/utils/gen_modules_docs.sh
+++ b/utils/gen_modules_docs.sh
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 for i in roles/ipa*/*/*.py; do
     python utils/gen_module_docs.py $i
 done