diff --git a/source/gamestate_postfase.cpp b/source/gamestate_postfase.cpp
index 5e1cc69..fe4505c 100644
--- a/source/gamestate_postfase.cpp
+++ b/source/gamestate_postfase.cpp
@@ -34,7 +34,7 @@ namespace gamestate
                 gamestate::sequence::init();
                 return;
             } else {
-                audio::loadMusic("mus3.mp3");
+                audio::loadMusic("mus3.ogg");
                 audio::playMusic();
             }