diff --git a/lib/png/generate_png.js b/lib/png/generate_png.js
index 735100662..8c1c40806 100644
--- a/lib/png/generate_png.js
+++ b/lib/png/generate_png.js
@@ -11,8 +11,8 @@ async (imgString) => {
   };
   const img = await loadImage();
   const canvas = document.createElement("canvas");
-  canvas.width = img.width * 1.5;
-  canvas.height = img.height * 1.5;
+  canvas.width = img.width * 2;
+  canvas.height = img.height * 2;
   const ctx = canvas.getContext("2d");
   if (!ctx) {
     return new Error("could not get canvas context");