diff --git a/paddle/gserver/layers/ConvTransProjection.cpp b/paddle/gserver/layers/ConvTransProjection.cpp
index 48132a3ce4cc4b50fea6d755d84d7254d2055bec..e7f081c0232d185c223fc2f48ca79dc84c7f721d 100644
--- a/paddle/gserver/layers/ConvTransProjection.cpp
+++ b/paddle/gserver/layers/ConvTransProjection.cpp
@@ -24,13 +24,13 @@ size_t ConvTransProjection::calOutputSize() {
   if (outputH_ == 0) outputH_ = configOutH_;
   if (outputW_ == 0) outputW_ = configOutW_;
   imageH_ = imageSize(outputH_,
-                      filterH_,
+                      (filterH_ - 1) * dilationH_ + 1,
                       paddingH_,
                       strideH_,
                       /* caffeMode */ true);
 
   imageW_ = imageSize(outputW_,
-                      filterW_,
+                      (filterW_ - 1) * dilationW_ + 1,
                       paddingW_,
                       strideW_,
                       /* caffeMode */ true);
diff --git a/paddle/gserver/tests/test_LayerGrad.cpp b/paddle/gserver/tests/test_LayerGrad.cpp
index 2b6ba7747060c00cc72338c4ab9b148163fdb7b1..a2f07937b8834e3f3fa7a6bf2ae10f29a8d84f29 100644
--- a/paddle/gserver/tests/test_LayerGrad.cpp
+++ b/paddle/gserver/tests/test_LayerGrad.cpp
@@ -238,9 +238,24 @@ void testProjectionConv(size_t groups, bool isDeconv) {
                             /* caffeMode */ true);
   conv->set_output_x(output_x);
   conv->set_output_y(output_y);
+  LOG(INFO) << "DILATION:" << DILATION << "; output_x: " << output_x
+            << "; output_y: " << output_y;
   if (isDeconv) {
+    int deconv_image_x = imageSize(output_x,
+                                   (conv->filter_size() - 1) * DILATION + 1,
+                                   conv->padding(),
+                                   conv->stride(),
+                                   /* caffeMode */ true);
+    int deconv_image_y = imageSize(output_y,
+                                   (conv->filter_size_y() - 1) * DILATION + 1,
+                                   conv->padding_y(),
+                                   conv->stride_y(),
+                                   /* caffeMode */ true);
+
+    LOG(INFO) << " deconv_image_x: " << deconv_image_x
+              << "; deconv_image_y: " << deconv_image_y;
     conf.set_input_size(output_x * output_y * CHANNELS);
-    conf.set_output_size(IMAGE_SIZE * IMAGE_SIZE * NUM_FILTERS);
+    conf.set_output_size(deconv_image_x * deconv_image_y * NUM_FILTERS);
   } else {
     conf.set_input_size(IMAGE_SIZE * IMAGE_SIZE * CHANNELS);
     conf.set_output_size(output_x * output_y * NUM_FILTERS);