diff --git a/libs/surfaces/generic_midi/wscript b/libs/surfaces/generic_midi/wscript
index e871aeeec1..a2008deaca 100644
--- a/libs/surfaces/generic_midi/wscript
+++ b/libs/surfaces/generic_midi/wscript
@@ -30,18 +30,16 @@ def build(bld):
             midiaction.cc
     '''
     obj.export_includes = ['.']
-    obj.defines     = [ 'PACKAGE="ardour_genericmidi"' ]
-    obj.includes     = ['.', './generic_midi']
+    obj.defines      = [ 'PACKAGE="ardour_genericmidi"' ]
+    obj.defines     += [ 'ARDOURSURFACE_DLL_EXPORTS' ]
+    obj.defines     += [ 'PROGRAM_NAME="' + bld.env['PROGRAM_NAME'] + '"' ]
+    obj.includes     = [ '.', './generic_midi']
     obj.name         = 'libardour_generic_midi'
     obj.target       = 'ardour_generic_midi'
-    obj.defines      = [ 'ARDOURSURFACE_DLL_EXPORTS' ]
     obj.uselib       = 'GTKMM GTK GDK'
     obj.use          = 'libardour libardour_cp libgtkmm2ext libpbd'
     obj.vnum         = LIBARDOUR_GENERIC_MIDI_LIB_VERSION
     obj.install_path = os.path.join(bld.env['LIBDIR'], 'ardour3', 'surfaces')
-    obj.defines      += [
-        'PROGRAM_NAME="' + bld.env['PROGRAM_NAME'] + '"'
-        ]
 
 def shutdown():
     autowaf.shutdown()