diff --git a/.gitignore b/.gitignore
index 27ab66f9ec8071c47b818c68404a9b73c924108d..060f9f206b7333eebdb8bd6c94f24bef176fac77 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,5 @@ mace/codegen/tuning/
 mace/codegen/version/
 build/
 docs/_build/
+
+\.project/
diff --git a/mace/kernels/opencl/depth_to_space_opencl.cc b/mace/kernels/opencl/depth_to_space_opencl.cc
index 4c84ab147eb33c51a7dc09f9cee464180d9444a1..56e1e106f3a33c7ca2dd448dcf35f7ca49fb9745 100644
--- a/mace/kernels/opencl/depth_to_space_opencl.cc
+++ b/mace/kernels/opencl/depth_to_space_opencl.cc
@@ -39,6 +39,8 @@ void DepthToSpaceOpFunctor<DeviceType::OPENCL, T>::operator()(
     output_height = input_height * block_size_;
     output_width = input_width * block_size_;
     output_depth = input_depth / (block_size_ * block_size_);
+    MACE_CHECK(output_depth % 4 == 0, "output channel not support:")
+          << output_depth;
     kernel_name = "depth_to_space";
 
     gws[0] = static_cast<uint32_t>(RoundUpDiv4(output_depth));
@@ -50,6 +52,8 @@ void DepthToSpaceOpFunctor<DeviceType::OPENCL, T>::operator()(
     output_height = input_height / block_size_;
     output_width = input_width / block_size_;
     output_depth = input_depth * block_size_ * block_size_;
+    MACE_CHECK(input_depth % 4 == 0, "input channel not support:")
+      << input_depth;
     kernel_name = "space_to_depth";
 
     gws[0] = static_cast<uint32_t>(RoundUpDiv4(input_depth));