diff --git a/plugins/LegacyProfileReader/DictionaryOfDoom.json b/plugins/LegacyProfileReader/DictionaryOfDoom.json
index 06c06aa497..e30460f103 100644
--- a/plugins/LegacyProfileReader/DictionaryOfDoom.json
+++ b/plugins/LegacyProfileReader/DictionaryOfDoom.json
@@ -8,7 +8,6 @@
         "layer_height": "layer_height",
         "layer_height_0": "bottom_thickness",
         "wall_thickness": "wall_thickness",
-        "top_bottom_thickness": "solid_layer_thickness",
         "top_thickness": "0 if (solid_top == \"False\") else solid_layer_thickness",
         "bottom_thickness": "0 if (solid_bottom == \"False\") else solid_layer_thickness",
         "infill_sparse_density": "fill_density",