diff --git a/modules/core/include/opencv2/core/cuda/utility.hpp b/modules/core/include/opencv2/core/cuda/utility.hpp
index 96616d67b..b93503737 100644
--- a/modules/core/include/opencv2/core/cuda/utility.hpp
+++ b/modules/core/include/opencv2/core/cuda/utility.hpp
@@ -59,7 +59,7 @@ namespace cv { namespace cuda { namespace device
         typedef uchar value_type;
 
         virtual __device__ __host__ uchar* allocate(size_t numBytes) = 0;
-        virtual __device__ __host__ void free(uchar* ptr) = 0;
+        virtual __device__ __host__ void deallocate(uchar* ptr, size_t numBytes) = 0;
         static ThrustAllocator& getAllocator();
         static void setAllocator(ThrustAllocator* allocator);
     };
diff --git a/modules/core/src/cuda/gpu_mat.cu b/modules/core/src/cuda/gpu_mat.cu
index a4e8ee730..e5a8facef 100644
--- a/modules/core/src/cuda/gpu_mat.cu
+++ b/modules/core/src/cuda/gpu_mat.cu
@@ -71,7 +71,7 @@ namespace
             return NULL;
 #endif
         }
-        __device__ __host__ void free(uchar* ptr)
+        __device__ __host__ void deallocate(uchar* ptr, size_t numBytes)
         {
 #ifndef __CUDA_ARCH__
             CV_CUDEV_SAFE_CALL(cudaFree(ptr));