diff --git a/APPL/API2/model_mld_kenmerk.inc b/APPL/API2/model_mld_kenmerk.inc
index 5aa3853991..f861f6cff9 100644
--- a/APPL/API2/model_mld_kenmerk.inc
+++ b/APPL/API2/model_mld_kenmerk.inc
@@ -161,7 +161,7 @@ function model_mld_kenmerk(niveau, params)
 
     this.getPropertyType = function (kenmerkdata)
     {
-        var typedata = api2.GET(new model_mld_srtkenmerk(), kenmerkdata.issuepropertytype.id);
+        var typedata = api2.GET(new model_mld_srtkenmerk({internal: params.internal}), kenmerkdata.issuepropertytype.id);
         return typedata;
     }
 
diff --git a/APPL/API2/model_mld_srtkenmerk.inc b/APPL/API2/model_mld_srtkenmerk.inc
index 21f85687c4..c150b27cf9 100644
--- a/APPL/API2/model_mld_srtkenmerk.inc
+++ b/APPL/API2/model_mld_srtkenmerk.inc
@@ -13,14 +13,15 @@
 %>
 <%
 
-function model_mld_srtkenmerk()
+function model_mld_srtkenmerk(params)
 {
+    params = params || {};
     this.records_name = "issuepropertytypes";
     this.record_name = "issuepropertytype";
     this.table = "mld_srtkenmerk";
     this.primary = "mld_srtkenmerk_key";
     this.soft_delete  = "mld_srtkenmerk_verwijder";
-    this.autfunction = "WEB_MLDMGT";
+    this.autfunction = params.internal?false:"WEB_MLDMGT";
     this.record_title = L("mld_srtkenmerk");
     this.records_title = L("mld_srtkenmerk_m");