diff --git a/src/layer/x86/convolution_x86.cpp b/src/layer/x86/convolution_x86.cpp
index e0708d6bd..1d0cb14d7 100644
--- a/src/layer/x86/convolution_x86.cpp
+++ b/src/layer/x86/convolution_x86.cpp
@@ -416,7 +416,7 @@ int Convolution_x86::forward_int8_x86(const Mat& bottom_blob, Mat& top_blob, con
 
                 float scale_out = top_blob_int8_scale;//FIXME load param
 
-                requantize_int8_to_int8(top_blob_tm, top_blob, scale_in, scale_out, &bias_data[p], bias_term ? 1 : 0, 0, opt_g);
+                requantize_int8_to_int8(top_blob_tm_g, top_blob_g, scale_in, scale_out, &bias_data[p], bias_term ? 1 : 0, 0, opt_g);
             }
         }
         else
diff --git a/tests/test_convolution.cpp b/tests/test_convolution.cpp
index 116adfd8b..9877beb33 100644
--- a/tests/test_convolution.cpp
+++ b/tests/test_convolution.cpp
@@ -164,7 +164,7 @@ static int test_convolution_int8(int w, int h, int c, int outch, int kernel, int
     int ret = test_layer<ncnn::Convolution>("Convolution", pd, mb, opt, a, 0.001f, requant ? set_param : 0);
     if (ret != 0)
     {
-        fprintf(stderr, "test_convolution_int8 failed w=%d h=%d c=%d outch=%d kernel=%d dilation=%d stride=%d pad=%d bias=%d\n", w, h, c, outch, kernel, dilation, stride, pad, bias);
+        fprintf(stderr, "test_convolution_int8 failed w=%d h=%d c=%d outch=%d kernel=%d dilation=%d stride=%d pad=%d bias=%d requant=%d\n", w, h, c, outch, kernel, dilation, stride, pad, bias, requant);
     }
 
     return 0;
@@ -227,25 +227,25 @@ static int test_convolution_1()
     for (int i=0; i<20; i++)
     {
         int ret = 0
-        || test_convolution_int8(1, 1, 1, 1, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 1, 1, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 2, 2, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 3, 3, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 4, 4, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 7, 7, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 8, 8, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 15, 15, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 16, 16, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 1, 1, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 1, 1, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 2, 2, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 3, 3, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 4, 4, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 7, 7, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 8, 8, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 15, 15, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 16, 16, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
 
-        || test_convolution_int8(1, 1, 1, 1, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 2, 2, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 3, 3, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 3, 12, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 4, 4, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 8, 3, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 8, 8, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 16, 4, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
-        || test_convolution_int8(1, 1, 16, 16, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 1, 1, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 2, 2, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 3, 3, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 3, 12, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 4, 4, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 8, 3, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 8, 8, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 16, 4, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
+        || test_convolution_int8(13, 11, 16, 16, kdsp[i][0], kdsp[i][1], kdsp[i][2], kdsp[i][3], 1, true)
         ;
 
         if (ret != 0)