diff --git a/src/cw/lw_put_cisco_path_mtu.c b/src/cw/lw_put_cisco_path_mtu.c
index 726fe1c1..f6f264ac 100644
--- a/src/cw/lw_put_cisco_path_mtu.c
+++ b/src/cw/lw_put_cisco_path_mtu.c
@@ -23,6 +23,7 @@
 
 #include "lwapp_cisco.h"
 #include "lw.h"
+#include "vendors.h"
 
 /** 
  * Put message element data for Cisco vendor specific LWAPP message