diff --git a/tests/cleanup.bash b/tests/cleanup
similarity index 96%
rename from tests/cleanup.bash
rename to tests/cleanup
index 0b792f9c7..288c81025 100755
--- a/tests/cleanup.bash
+++ b/tests/cleanup
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 # This simple script ensures that all binary
 # output files have been deleted in all the
 # folders. This can occur if a previous error