diff --git a/docs/install/c_plus_plus.md b/docs/install/c_plus_plus.md
index b66ee7d0b80a..6ad67e2803db 100644
--- a/docs/install/c_plus_plus.md
+++ b/docs/install/c_plus_plus.md
@@ -6,11 +6,8 @@ To enable C++ package, just add `USE_CPP_PACKAGE=1` in the [build from source](b
 For example to build MXNet with GPU support and the C++ package, OpenCV, and OpenBLAS, from the project root you would run:
 
 ```bash
-echo "USE_CPP_PACKAGE=1" >> ./config.mk
-echo "USE_OPENCV=1" >> ./config.mk
-echo "USE_BLAS=openblas" >> ./config.mk
-echo "USE_CUDA=1" >> ./config.mk
-make -j $(nproc)
+cmake -DUSE_CUDA=1 -DUSE_CUDA_PATH=/usr/local/cuda -DUSE_CUDNN=1 -DUSE_MKLDNN=1 -DUSE_CPP_PACKAGE=1 -GNinja .
+ninja -v
 ```
 
 You may also want to add the MXNet shared library to your `LD_LIBRARY_PATH`: