diff --git a/src/components/three/ModelViewer.tsx b/src/components/three/ModelViewer.tsx
index d06236d..3098428 100644
--- a/src/components/three/ModelViewer.tsx
+++ b/src/components/three/ModelViewer.tsx
@@ -4,7 +4,7 @@ import { OrbitControls, useGLTF, Grid, Html, Line } from '@react-three/drei';
 import { Loader2 } from 'lucide-react';
 import * as THREE from 'three';
 import { useModelStore, type SceneModel } from '@/stores/useModelStore';
-import { findNearestVertex, detectHoleAtFace, findNearestEdgeSegment } from './SmartMeasure';
+import { findNearestVertex, detectHoleAtFace, findNearestEdgeSegment, detectCircularEdgeAtPoint } from './SmartMeasure';
 
 interface ModelViewerProps {
   url?: string; // legacy, ignored — uses store.models