diff --git a/Getting-started.md b/Getting-started.md
index ed8482a..3c47478 100644
--- a/Getting-started.md
+++ b/Getting-started.md
@@ -34,6 +34,7 @@ Debian: `apt install zlib1g-dev`
 Install g++-7 on Ubuntu 16.04: https://gist.github.com/jlblancoc/99521194aba975286c80f93e47966dc5
 
 `-DUSE_SHARED_LLVM=on` (optional) makes linked executable smaller.
+`-G Ninja` to build with ninja.
 
 ### Setup your editor