diff --git a/src/CMakeLists.osx.txt b/src/CMakeLists.osx.txt
index 17d41ed68..9239931eb 100644
--- a/src/CMakeLists.osx.txt
+++ b/src/CMakeLists.osx.txt
@@ -27,12 +27,15 @@ if (APPLE)
   # Uses Darwin kernel version.
   # 9.8.0  -> 10.5/Leopard
   # 10.4.0 -> 10.6/Snow Leopard
+  # 11.x.x -> Lion
   string(REGEX MATCH "[0-9]+" DARWIN_VERSION ${CMAKE_HOST_SYSTEM_VERSION})
-  if (DARWIN_VERSION GREATER 9)
+  if (DARWIN_VERSION GREATER 10)
+    SET(LION 1)
+  elseif (DARWIN_VERSION GREATER 9)
     SET(SNOW_LEOPARD 1)
   elseif (DARWIN_VERSION GREATER 8)
     SET(LEOPARD 1)
-  endif (DARWIN_VERSION GREATER 9)
+  endif (DARWIN_VERSION GREATER 10)
 
 # Use two different sparkle update tracks for debug and release
 # We have to change the URL in the Info.plist file :-/
diff --git a/src/config.h.in b/src/config.h.in
index 5f9e1e438..6d1385f72 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -11,6 +11,7 @@
 #define CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}"
 #define CMAKE_SYSTEM "${CMAKE_SYSTEM}"
 
+#cmakedefine LION
 #cmakedefine SNOW_LEOPARD
 #cmakedefine LEOPARD
 #cmakedefine HAVE_SPARKLE
diff --git a/src/mac/tomahawkapp_mac.mm b/src/mac/tomahawkapp_mac.mm
index 2178ae37b..91237e67a 100644
--- a/src/mac/tomahawkapp_mac.mm
+++ b/src/mac/tomahawkapp_mac.mm
@@ -23,8 +23,6 @@
 #include "config.h"
 #include "tomahawkwindow.h"
 
-#include "AvailabilityMacros.h"
-
 #import <AppKit/NSApplication.h>
 #import <Foundation/NSAutoreleasePool.h>
 #import <Foundation/NSBundle.h>
@@ -236,7 +234,7 @@ void Tomahawk::checkForUpdates() {
 
 void Tomahawk::enableFullscreen()
 {
-#if defined(MAC_OS_X_VERSION_10_7)
+#ifdef LION
     qDebug() << "Enabling Lion Full-screeen";
     // Can't include tomahawkapp.h in a .mm file, pulls in infosystem.h which uses
     // the objc keyword 'id'