diff --git a/lib/client/fileUpload.html b/lib/client/fileUpload.html
index ea9c6d3..ba0a2c5 100644
--- a/lib/client/fileUpload.html
+++ b/lib/client/fileUpload.html
@@ -1,5 +1,5 @@
 <template name="afFileUpload">
-  <input value="{{fileId}}" type="hidden" {{this.atts}}>
+  <input value="{{fileId}}" type="hidden" {{inputAtts this}}>
   {{#with uploadedFile}}
     {{#if previewTemplate}}
       {{>Template.dynamic template=previewTemplate}}
diff --git a/lib/client/fileUpload.js b/lib/client/fileUpload.js
index 3a233e4..2ff7cde 100644
--- a/lib/client/fileUpload.js
+++ b/lib/client/fileUpload.js
@@ -111,6 +111,12 @@ Template.afFileUpload.helpers({
   },
   accept() {
     return Template.instance().accept;
+  },
+  inputAtts(formContext) {
+    const { atts } = formContext;
+    if (!atts) return;
+    delete atts.insertConfig;
+    return atts;
   }
 });