diff --git a/lite/kernels/arm/conv_compute.cc b/lite/kernels/arm/conv_compute.cc
index 8c76f243a647553de198bea5c581a620d99bbbeb..52849a026e1b23a0fa9757030764a0012092ef4c 100644
--- a/lite/kernels/arm/conv_compute.cc
+++ b/lite/kernels/arm/conv_compute.cc
@@ -110,8 +110,7 @@ void ConvCompute<PRECISION(kInt8), PRECISION(kFloat)>::PrepareForRun() {
   bool kps_equal = (pw == ph) && (sh == sw) && (kw == kh);
   bool no_dilation = (dilations[0] == 1) && (dilations[1] == 1);
   bool flag_dw_3x3 = (kw == 3 && kh == 3 && (sw == 1 || sw == 2));
-  bool flag_dw_5x5 = pads_all_equal &&
-                     ((kw == 5 && sw == 1) || (kw == 5 && sw == 2 && pw == 2));
+  bool flag_dw_5x5 = pads_all_equal && (kw == 5 && sw == 1);
   bool flag_dw = flag_dw_3x3 || flag_dw_5x5;
 
   if (param.groups == ic && ic == oc && kps_equal && pads_equal &&
@@ -156,8 +155,7 @@ void ConvCompute<PRECISION(kInt8), PRECISION(kInt8)>::PrepareForRun() {
   bool kps_equal = (pw == ph) && (sh == sw) && (kw == kh);
   bool no_dilation = (dilations[0] == 1) && (dilations[1] == 1);
   bool flag_dw_3x3 = (kw == 3 && kh == 3 && (sw == 1 || sw == 2));
-  bool flag_dw_5x5 = pads_all_equal &&
-                     ((kw == 5 && sw == 1) || (kw == 5 && sw == 2 && pw == 2));
+  bool flag_dw_5x5 = pads_all_equal && (kw == 5 && sw == 1);
   bool flag_dw = flag_dw_3x3 || flag_dw_5x5;
 
   if (param.groups == ic && ic == oc && kps_equal && pads_equal &&