diff --git a/backends/platform/sdl/macosx/appMenu_osx.h b/backends/platform/sdl/macosx/appmenu_osx.h
similarity index 100%
rename from backends/platform/sdl/macosx/appMenu_osx.h
rename to backends/platform/sdl/macosx/appmenu_osx.h
diff --git a/backends/platform/sdl/macosx/appMenu_osx.mm b/backends/platform/sdl/macosx/appmenu_osx.mm
similarity index 98%
rename from backends/platform/sdl/macosx/appMenu_osx.mm
rename to backends/platform/sdl/macosx/appmenu_osx.mm
index 794bb2d5546c..3e930fbd7135 100755
--- a/backends/platform/sdl/macosx/appMenu_osx.mm
+++ b/backends/platform/sdl/macosx/appmenu_osx.mm
@@ -25,7 +25,7 @@
 // Disable symbol overrides so that we can use system headers.
 #define FORBIDDEN_SYMBOL_ALLOW_ALL
 
-#include "backends/platform/sdl/macosx/appMenu_osx.h"
+#include "backends/platform/sdl/macosx/appmenu_osx.h"
 #include "common/translation.h"
 
 #include <Cocoa/Cocoa.h>
diff --git a/backends/platform/sdl/module.mk b/backends/platform/sdl/module.mk
index 34631c372d95..f1afe3734903 100644
--- a/backends/platform/sdl/module.mk
+++ b/backends/platform/sdl/module.mk
@@ -15,7 +15,7 @@ ifdef MACOSX
 MODULE_OBJS += \
 	macosx/macosx-main.o \
 	macosx/macosx.o \
-	macosx/appMenu_osx.o
+	macosx/appmenu_osx.o
 endif
 
 ifdef WIN32