diff --git a/src/stores/useModelStore.ts b/src/stores/useModelStore.ts
index 952dde8..4091758 100644
--- a/src/stores/useModelStore.ts
+++ b/src/stores/useModelStore.ts
@@ -420,6 +420,7 @@ export const useModelStore = create<ModelStore>((set, get) => ({
       id, fileName: m.fileName, fileSize: m.fileSize, url: m.url,
       color: MODEL_COLORS[0], visible: true, locked: false,
       fineTuning: { ...defaultFineTuning },
+      calibrationQuat: null,
     };
     set({ models: [newModel], activeModelId: id, ...syncActive({ models: [newModel], activeModelId: id }) });
   },