diff --git a/README.md b/README.md
index c09b00e4..160b0b6e 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 # Enter the root of InfiniTensor
 source test/script/env_lotus.sh 
 mkdir build && cd build
-cmake .. && make -j 12
+cmake -DUSE_CUDA=ON .. && make -j 12
 ```
 
 ## Contributor Guide