diff --git a/src/osx/mod.rs b/src/osx/mod.rs
index e61e5366..d41c9c79 100644
--- a/src/osx/mod.rs
+++ b/src/osx/mod.rs
@@ -23,7 +23,7 @@ pub fn get_primary_monitor() -> MonitorID {
 
 impl MonitorID {
     pub fn get_name(&self) -> Option<String> {
-       unimplemented!()
+        unimplemented!()
     }
 
     pub fn get_dimensions(&self) -> (uint, uint) {