diff --git a/lite/backends/arm/math/conv5x5s1_depthwise_fp32.cc b/lite/backends/arm/math/conv5x5s1_depthwise_fp32.cc
index 6c3a8767f546de0531063e7692b33d1c362fa921..4769c6da622096d31c61d2f7393436dd161d5e23 100644
--- a/lite/backends/arm/math/conv5x5s1_depthwise_fp32.cc
+++ b/lite/backends/arm/math/conv5x5s1_depthwise_fp32.cc
@@ -5038,7 +5038,7 @@ void conv_depthwise_5x5s1_bias_leakyRelu(float* dout,
                                            cnt,
                                            remain,
                                            3 - h);
-        dout_ptr0 += wout;
+        dout_ptr0 += wout; // 
         din_ptr_arr[0] = din_ptr0;
         din_ptr_arr[1] = din_ptr1;
         din_ptr_arr[2] = din_ptr2;