diff --git a/csrc/mmdeploy/codebase/mmaction/cuda/transpose.cu b/csrc/mmdeploy/codebase/mmaction/cuda/transpose.cu
index 757e40da3..bef1d447e 100644
--- a/csrc/mmdeploy/codebase/mmaction/cuda/transpose.cu
+++ b/csrc/mmdeploy/codebase/mmaction/cuda/transpose.cu
@@ -3,7 +3,9 @@
 #include <stdint.h>
 #include <stdio.h>
 
-namespace mmdeploy::mmaction::cuda {
+namespace mmdeploy {
+namespace mmaction {
+namespace cuda {
 
 template <typename T>
 __global__ void transpose(const T* src, const int* src_strides, T* dst, const int* dst_strides,
@@ -35,4 +37,6 @@ void Transpose(const T* src, const int* src_strides, T* dst, const int* dst_stri
 template void Transpose<float>(const float* src, const int* src_strides, float* dst,
                                const int* dst_strides, int ndim, int total, cudaStream_t stream);
 
-}  // namespace mmdeploy::mmaction::cuda
+}  // namespace cuda
+}  // namespace mmaction
+}  // namespace mmdeploy