diff --git a/Readme.md b/Readme.md
index a7d5bd3..8f38471 100644
--- a/Readme.md
+++ b/Readme.md
@@ -29,7 +29,7 @@ Go into the source directory and run:
 
 ```
 $ mkdir build && cd build
-$ cmake ..
+$ cmake -DCMAKE_BUILD_TYPE=Release ..
 $ make
 $ make install
 ```