diff --git a/src/components/three/ModelViewer.tsx b/src/components/three/ModelViewer.tsx
index ef40566..8a66776 100644
--- a/src/components/three/ModelViewer.tsx
+++ b/src/components/three/ModelViewer.tsx
@@ -3,7 +3,7 @@ import { Canvas, useThree, useFrame } from '@react-three/fiber';
 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 { useModelStore, type SceneModel, type HoverInfo } from '@/stores/useModelStore';
 import { findNearestVertex, detectHoleAtFace, findNearestEdgeSegment, detectCircularEdgeAtPoint } from './SmartMeasure';
 import { registerModelLocalGroup, unregisterModelLocalGroup } from '@/lib/modelTransforms';
 import { parseIFCtoThree } from '@/lib/convertIFC';
@@ -471,7 +471,7 @@ function ModelMeasurements({ modelId }: { modelId: string }) {
 
 /** Renders snap indicator, hover tooltip, pending point and any *legacy*
  *  world-frame measurements that aren't attached to a specific model. */
-function HoverLabelOverlay({ hoverInfo }: { hoverInfo: any }) {
+function HoverLabelOverlay({ hoverInfo }: { hoverInfo: HoverInfo | null }) {
   const visible = !!hoverInfo;
   const position = hoverInfo?.position ?? [0, 0, 0];
   const text = hoverInfo