diff --git a/src/quota-warning.sh b/src/quota-warning.sh
index 06bab04e..b8e26d26 100644
--- a/src/quota-warning.sh
+++ b/src/quota-warning.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 PERCENT=$1
 DOM="`echo $USER | sed -e 's/.*@//'`"