diff --git a/src/hooks/roofcover/useRoofShapeSetting.js b/src/hooks/roofcover/useRoofShapeSetting.js
index ddf94e9c..1722e287 100644
--- a/src/hooks/roofcover/useRoofShapeSetting.js
+++ b/src/hooks/roofcover/useRoofShapeSetting.js
@@ -244,6 +244,9 @@ export function useRoofShapeSetting(setShowRoofShapeSettingModal) {
       }
     }
 
+    // 기존 wallLine 제거
+    canvas?.remove(canvas.getObjects().filter((obj) => obj.name === 'wallLine'))
+
     const polygon = addPolygonByLines(outerLines, { name: 'wallLine' })
     polygon.lines = [...outerLines]
 
diff --git a/src/hooks/useCanvasEvent.js b/src/hooks/useCanvasEvent.js
index 55a34cb2..49705917 100644
--- a/src/hooks/useCanvasEvent.js
+++ b/src/hooks/useCanvasEvent.js
@@ -77,6 +77,8 @@ export function useCanvasEvent() {
       if (target.name === 'lengthText') {
         const x = target.left
         const y = target.top
+        target.lockMovementX = false
+        target.lockMovementY = false
         // Add a property to store the previous value
         const previousValue = target.text
         target.on('selected', (e) => {