diff --git a/src/canvas.js b/src/canvas.js
index 2cee3ee..04c34f7 100644
--- a/src/canvas.js
+++ b/src/canvas.js
@@ -188,6 +188,7 @@ function handleMouseMove(e) {
 }
 
 function handleMouseUp(e) {
+    MyAltTextOrg.canvas.discardActiveObject(null);
     MyAltTextOrg.crops.active.currRect = null
     MyAltTextOrg.crops.active.currRectStart = null
 }