diff --git a/mindspore/lite/tools/converter/legacy_optimizer/fusion/quant_cast_fusion_pass.cc b/mindspore/lite/tools/converter/legacy_optimizer/fusion/quant_cast_fusion_pass.cc
index 6894f5b4fa..d3c5231290 100644
--- a/mindspore/lite/tools/converter/legacy_optimizer/fusion/quant_cast_fusion_pass.cc
+++ b/mindspore/lite/tools/converter/legacy_optimizer/fusion/quant_cast_fusion_pass.cc
@@ -80,7 +80,7 @@ STATUS QuantCastFusionPass::DoFusion(MetaGraphT *graph, const std::string &patte
       return status;
     }
   } else {
-    dstAttr->srcT = srcAttr->dstT;
+    dstAttr->srcT = srcAttr->srcT;
   }
 
   return RET_OK;