diff --git a/tests/helpers.tests/ynhtest_setup_source b/tests/helpers.tests/ynhtest_setup_source.sh
similarity index 100%
rename from tests/helpers.tests/ynhtest_setup_source
rename to tests/helpers.tests/ynhtest_setup_source.sh
diff --git a/tests/test_helpers.sh b/tests/test_helpers.sh
index 1a33a2433..399345796 100644
--- a/tests/test_helpers.sh
+++ b/tests/test_helpers.sh
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 readonly NORMAL=$(printf '\033[0m')
 readonly BOLD=$(printf '\033[1m')
 readonly RED=$(printf '\033[31m')