diff --git a/utils/gen_modules_docs.sh b/utils/gen_modules_docs.sh
index de1d9319217f9b3034d4140b85447dae52e0451f..f51dbe9371ce91bf2c8113f9800517a806570310 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