diff --git a/leenkx/blender/lnx/make_renderpath.py b/leenkx/blender/lnx/make_renderpath.py
index 5576c99..cff51f1 100644
--- a/leenkx/blender/lnx/make_renderpath.py
+++ b/leenkx/blender/lnx/make_renderpath.py
@@ -217,8 +217,12 @@ def build():
         if rpdat.rp_compositornodes:
             assets.add_khafile_def('rp_compositornodes')
             compo_depth = False
+            # wrd.compo_defs += ''
             if rpdat.lnx_tonemap != 'Off':
-                wrd.compo_defs = '_CTone' + rpdat.lnx_tonemap
+                wrd.compo_defs += '_CTone' + rpdat.lnx_tonemap
+            if rpdat.lnx_dithering != 'Off':
+                wrd.compo_defs += '_CDithering' + rpdat.lnx_dithering
+                wrd.compo_defs += '_CDitheringStrength'
             if rpdat.rp_antialiasing == 'FXAA':
                 wrd.compo_defs += '_CFXAA'
             if rpdat.lnx_letterbox: