diff --git a/building.md b/building.md
index 72e0380..a4019a3 100644
--- a/building.md
+++ b/building.md
@@ -40,7 +40,7 @@ you'll need [homebrew](http://brew.sh/) to install the required dependencies.
     - `make reinstall`
 - `git clone https://github.com/clangen/musikcube.git --recursive`
 - `cd musikcube`
-- `cmake .`
+- `cmake -G "Unix Makefiles" .`
 - `make`
 - `sudo make install`
 - `musikcube`