diff --git a/source/resource/render_controllers/1.8.0/render_controllers.json b/source/resource/render_controllers/1.8.0/render_controllers.json
index b02c6596..9b5e0604 100644
--- a/source/resource/render_controllers/1.8.0/render_controllers.json
+++ b/source/resource/render_controllers/1.8.0/render_controllers.json
@@ -23,6 +23,8 @@
     "render_controllers": {
       "type": "object",
       "propertyNames": { "pattern": "^controller\\.render\\.[a-z\\.]+", "examples": ["controller.render.example"] },
+      "description": "UNDOCUMENTED: render controllers",
+      "title": "Render Controllers",
       "additionalProperties": {
         "additionalProperties": false,
         "type": "object",
@@ -175,6 +177,11 @@
             "description": "UNDOCUMENTED: part visibility",
             "title": "Part Visibility"
           },
+          "rebuild_animation_matrices": {
+            "description": "UNDOCUMENTED",
+            "title": "Rebuild Animation Matrices",
+            "type": "boolean"
+          },
           "textures": {
             "type": "array",
             "minItems": 1,
@@ -208,9 +215,7 @@
             "title": "Uv Anim"
           }
         }
-      },
-      "description": "UNDOCUMENTED: render controllers",
-      "title": "Render Controllers"
+      }
     }
   }
 }