diff --git a/src/cw/cw_in_vendor_specific_payload.c b/src/cw/cw_in_vendor_specific_payload.c
index 79b3a353..2d6c5fbc 100644
--- a/src/cw/cw_in_vendor_specific_payload.c
+++ b/src/cw/cw_in_vendor_specific_payload.c
@@ -2,6 +2,7 @@
 #include "cw.h"
 #include "dbg.h"
 #include "log.h"
+#include "stravltree.h"
 
 /** 
  * @file