diff --git a/doc/COMPILE_CN.md b/doc/COMPILE_CN.md
index 18119a4e1a0580896be9b4fa2f4f2c881670d647..9325add1c6dbc8eb071a7b4594aafd6997b52777 100644
--- a/doc/COMPILE_CN.md
+++ b/doc/COMPILE_CN.md
@@ -143,7 +143,7 @@ cmake -DPYTHON_INCLUDE_DIR=$PYTHON_INCLUDE_DIR \
     -DCUDA_TOOLKIT_ROOT_DIR=${CUDA_PATH} \
     -DCUDNN_LIBRARY=${CUDNN_LIBRARY} \
     -DCUDA_CUDART_LIBRARY=${CUDA_CUDART_LIBRARY} \
-    -DTENSORRT_ROOT=${TENSORRT_LIBRARY_PATH}
+    -DTENSORRT_ROOT=${TENSORRT_LIBRARY_PATH} \
     -DSERVER=ON \
     -DWITH_GPU=ON ..
 make -j10