diff --git a/src/tests/run_all b/src/tests/run_all
index 270065c00..4328848c1 100755
--- a/src/tests/run_all
+++ b/src/tests/run_all
@@ -1,4 +1,4 @@
-#! /bin/sh
+#! /bin/bash
 
 date > all.log