diff --git a/plugins/PostProcessingPlugin/scripts/ColorMix.py b/plugins/PostProcessingPlugin/scripts/ColorMix.py
index 4ffb17b2a5..8a89c3bc20 100644
--- a/plugins/PostProcessingPlugin/scripts/ColorMix.py
+++ b/plugins/PostProcessingPlugin/scripts/ColorMix.py
@@ -72,7 +72,7 @@ class ColorMix(Script):
                     "minimum_value_warning": "0",
                     "maximum_value_warning": "100"
                 },
-                "f_mix_finish":
+                "mix_finish_ratio":
                 {
                     "label": "End mix ratio",
                     "description": "First extruder percentage 0-100 to finish blend",