diff --git a/test/run_tests b/test/run_tests
index 46b9dcb31ac8a374dd685b02ea431902b41bf36a..6cb635945f9a31703142d424d8a99a172ae9988c 100755
--- a/test/run_tests
+++ b/test/run_tests
@@ -1,4 +1,4 @@
-#! /bin/sh
+#! /bin/bash
 DIR=$(dirname $0)/..
 if [ "$*" == "" ]
 then