diff --git a/include/ck/tensor_operation/gpu/device/impl/device_grouped_conv_bwd_weight_xdl_cshuffle_v3.hpp b/include/ck/tensor_operation/gpu/device/impl/device_grouped_conv_bwd_weight_xdl_cshuffle_v3.hpp
index ac83cee251..e54660191c 100644
--- a/include/ck/tensor_operation/gpu/device/impl/device_grouped_conv_bwd_weight_xdl_cshuffle_v3.hpp
+++ b/include/ck/tensor_operation/gpu/device/impl/device_grouped_conv_bwd_weight_xdl_cshuffle_v3.hpp
@@ -1695,7 +1695,8 @@ struct DeviceGroupedConvBwdWeight_Xdl_CShuffleV3
             << BBlockTransferDstScalarPerVector_K1 << ", "
             << CShuffleMXdlPerWavePerShuffle << ", "
             << CShuffleNXdlPerWavePerShuffle << ", "
-            << CBlockTransferScalarPerVector_NWaveNPerXdl
+            << CBlockTransferScalarPerVector_NWaveNPerXdl << ", "
+            << NumGroupsToMerge
             << ">";
         // clang-format on