diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -778,7 +778,7 @@ quiet_cmd_cxx_compile = '===> Compiling 
 
 ifdef OSX
 OSX:=OSX
-OSX_MIDI_PLAYER_FILE:=os/macosx/OpenTTDMidi.class
+OSX_MIDI_PLAYER_FILE:=os/macos/OpenTTDMidi.class
 endif