diff --git a/src/components/fabric/QLine.js b/src/components/fabric/QLine.js
index 7796e66e..44374c5e 100644
--- a/src/components/fabric/QLine.js
+++ b/src/components/fabric/QLine.js
@@ -1,4 +1,5 @@
 import { fabric } from 'fabric'
+import { getDirection, getDirectionByPoint } from '@/util/canvas-util'
 
 export class QLine extends fabric.Group {
   line
@@ -39,7 +40,7 @@ export class QLine extends fabric.Group {
     this.y2 = y2
     this.line = line
     this.fontSize = option.fontSize
-    this.direction = option.direction
+    this.direction = option.direction ?? getDirectionByPoint({ x: x1, y: y1 }, { x: x2, y: y2 })
     this.parent = option.parent
     this.idx = option.idx