diff --git a/src/operators/kernel/central-arm-func/conv_add_arm_func.h b/src/operators/kernel/central-arm-func/conv_add_arm_func.h
index 130db31a7f148ce3dcf07b765e965cdcd2ddd632..d163b8862a082a06742b7344e34a5adb0b0cc871 100644
--- a/src/operators/kernel/central-arm-func/conv_add_arm_func.h
+++ b/src/operators/kernel/central-arm-func/conv_add_arm_func.h
@@ -35,7 +35,7 @@ void ConvAddBasic(const FusionConvAddParam &param) {
   float *output_data = output->data<float>();
   float *biase_data = bias.data<float>();
   for (int k = 0; k < output->numel(); ++k) {
-      output_data[k] = biase_data[k];
+    output_data[k] = biase_data[k];
   }
 
   int groups = param.Groups();