diff --git a/source/view.js b/source/view.js
index a6130f0bcb..8ad8e81b4b 100644
--- a/source/view.js
+++ b/source/view.js
@@ -5782,7 +5782,7 @@ view.ModelFactoryService = class {
         this.register('./catboost', ['.cbm']);
         this.register('./weka', ['.model']);
         this.register('./qnn', ['.json', '.bin', '.serialized']);
-        this.register('./kann', ['.kann', '.bin']);
+        this.register('./kann', ['.kann', '.bin', '.kgraph']);
         this.register('', ['.cambricon', '.vnnmodel']);
     }