diff --git a/src/components/ViewerControls.tsx b/src/components/ViewerControls.tsx
index 91ff5fd..4971f85 100644
--- a/src/components/ViewerControls.tsx
+++ b/src/components/ViewerControls.tsx
@@ -3,6 +3,7 @@ import { Slider } from '@/components/ui/slider';
 import { Button } from '@/components/ui/button';
 import { Popover, PopoverContent, PopoverTrigger } from '@/components/ui/popover';
 import { useModelStore } from '@/stores/useModelStore';
+import { ScaleSelector } from '@/components/ScaleSelector';
 import { useCallback } from 'react';
 import { toast } from 'sonner';