diff --git a/hw3/Claudio_Maggioni/scripts/app.js b/hw3/Claudio_Maggioni/scripts/app.js
index 54dace8..087f490 100644
--- a/hw3/Claudio_Maggioni/scripts/app.js
+++ b/hw3/Claudio_Maggioni/scripts/app.js
@@ -45,10 +45,12 @@ class App {
     this.canvas.addEventListener('mousemove', (e) => this.mousedown && this.draw(e));
 
     const endPath = (e) => {
-      this.ctx.lineTo(e.offsetX, e.offsetY);
-      this.ctx.stroke();
-      this.ctx.restore();
-      this.mousedown = false;
+      if (this.mousedown) {
+        this.ctx.lineTo(e.offsetX, e.offsetY);
+        this.ctx.stroke();
+        this.ctx.restore();
+        this.mousedown = false;
+      }
     };
 
     this.canvas.addEventListener('mouseup', endPath);