diff --git a/lib/pen.js b/lib/pen.js
index 42f750c..712c0eb 100644
--- a/lib/pen.js
+++ b/lib/pen.js
@@ -207,7 +207,7 @@ export default class Painter {
         while (this.ctx.measureText(`${text}...`).width > width) {
           text = text.substring(0, text.length - 1);
         }
-        text += "..."
+        text += '...';
       }
       const x = -(width / 2);
       const y = -(height / 2) + (i === 0 ? view.css.fontSize.toPx() : (view.css.fontSize.toPx() + i * lineHeight));