diff --git a/doc/fluid/user_guides/howto/inference/paddle_tensorrt_infer.md b/doc/fluid/user_guides/howto/inference/paddle_tensorrt_infer.md
index 111c84395dfae37aabb464c38e388a317f7b9cb5..226299c2ced5629cf7ba23958dffc0a7c0a5bfa4 100644
--- a/doc/fluid/user_guides/howto/inference/paddle_tensorrt_infer.md
+++ b/doc/fluid/user_guides/howto/inference/paddle_tensorrt_infer.md
@@ -36,7 +36,7 @@ NVIDIA TensorRT 是一个高性能的深度学习预测库，可为深度学习
 	      -DWITH_PYTHON=OFF
 	
 	# 编译    
-	make -j 10
+	make -j
 	# 生成预测库
 	make inference_lib_dist -j
 	```