diff --git a/dmsctl.sh b/dmsctl.sh
index 3a11ac1..4de67f5 100755
--- a/dmsctl.sh
+++ b/dmsctl.sh
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 # Boot KnowledgeTree services
 # chkconfig: 2345 55 25
 # description: KnowledgeTree Services