diff --git a/README.md b/README.md
index 869f7d53..664dde43 100644
--- a/README.md
+++ b/README.md
@@ -167,7 +167,8 @@ brew install sdl2 glew glm
 
 Build:
 
-```sh
+```git submodule update --init
+sh
 mkdir build
 cd build
 cmake ../