diff --git a/src/cuda/cudnn.jl b/src/cuda/cudnn.jl
index 585b948d..01a368c7 100644
--- a/src/cuda/cudnn.jl
+++ b/src/cuda/cudnn.jl
@@ -1,6 +1,8 @@
 using CuArrays.CUDNN: @check, libcudnn, cudnnStatus_t, libcudnn_handle,
   cudnnDataType, TensorDesc, FilterDesc
 
+using LinearAlgebra 
+
 mutable struct DropoutDesc
   ptr::Ptr{Nothing}
   states::CuVector{UInt8}
@@ -244,14 +246,14 @@ import ..Tracker: TrackedArray
 using CUDAnative
 using CuArrays: @cuindex, cudims
 
-function copy_transpose!(dst::CuArray, src::CuArray)
+function LinearAlgebra.copy_transpose!(dst::CuArray, src::CuArray)
   function kernel(dst, src)
     I = @cuindex dst
     dst[I...] = src[reverse(I)...]
     return
   end
   blk, thr = cudims(dst)
-  @cuda (blk, thr) kernel(dst, src)
+  @cuda blocks=blk threads=thr kernel(dst, src)
   return dst
 end