diff --git a/APPL/API2/model_bes_srtkenmerk.inc b/APPL/API2/model_bes_srtkenmerk.inc
index 9268fa2519..8a9ce7529b 100644
--- a/APPL/API2/model_bes_srtkenmerk.inc
+++ b/APPL/API2/model_bes_srtkenmerk.inc
@@ -54,7 +54,7 @@ function model_bes_srtkenmerk(params)
         "system": {
             "dbs": "bes_srtkenmerk_systeem",
             "label": L("mgt_srtkenmerk_systeem"),
-            "typ": "check"
+            "typ": "check0"
         },
         "length": {
             "dbs": "bes_srtkenmerk_lengte",