diff --git a/src/pluginsRT/RegionRT.cpp b/src/pluginsRT/RegionRT.cpp
index eec4771..2974d87 100644
--- a/src/pluginsRT/RegionRT.cpp
+++ b/src/pluginsRT/RegionRT.cpp
@@ -47,7 +47,7 @@ public:
 		dnnType *srcData = (dnnType*)reinterpret_cast<const dnnType*>(inputs[0]);
 		dnnType *dstData = reinterpret_cast<dnnType*>(outputs[0]);
 
-		checkCuda( cudaMemcpy(dstData, srcData, batchSize*c*h*w*sizeof(dnnType), cudaMemcpyDeviceToDevice));
+		checkCuda( cudaMemcpyAsync(dstData, srcData, batchSize*c*h*w*sizeof(dnnType), cudaMemcpyDeviceToDevice, stream));
 
 		for (int b = 0; b < batchSize; ++b){
 			for(int n = 0; n < num; ++n){