diff --git a/modelscope/models/cv/image_classification/mmcls_model.py b/modelscope/models/cv/image_classification/mmcls_model.py
index 52c0568b..6a65656e 100644
--- a/modelscope/models/cv/image_classification/mmcls_model.py
+++ b/modelscope/models/cv/image_classification/mmcls_model.py
@@ -27,9 +27,9 @@ class ClassificationModel(TorchModel):
 
         self.load_pretrained_checkpoint()
 
-    def forward(self, Inputs):
+    def forward(self, inputs):
 
-        return self.cls_model(**Inputs)
+        return self.cls_model(**inputs)
 
     def load_pretrained_checkpoint(self):
         import mmcv