diff --git a/libs/backends/wavesaudio/wscript b/libs/backends/wavesaudio/wscript
index ef2c796329..e4ace64cd6 100755
--- a/libs/backends/wavesaudio/wscript
+++ b/libs/backends/wavesaudio/wscript
@@ -31,8 +31,11 @@ def build(bld):
     else:
         obj = bld(features = 'c cxx cxxshlib')
 
-    if bld.env['build_target'] == 'mountain_lion' or bld.env['build_target'] == 'snowleopard':
-         obj.framework = 'CoreMidi'
+   if sys.platform == 'darwin':                                                                                                                                                                               
+        if bld.env['build_target'] not in [ 'lion' ]:                                                                                                                                                          
+            obj.framework = 'CoreMidi'                                                                                                                                                                         
+        else:                                                                                                                                                                                                  
+            obj.framework = 'CoreMIDI'                                                                                                                                                                         
 
     obj.source = [
             'waves_audiobackend.cc',