diff --git a/js/views/file_input_view.js b/js/views/file_input_view.js
index 5aca2b03ed..7377215c01 100644
--- a/js/views/file_input_view.js
+++ b/js/views/file_input_view.js
@@ -104,7 +104,7 @@
                         i = i - 1;
                         // TODO: Replace with native `Canvas::toBlob`:
                         // https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob
-                        blob = window.dataURLToBlob(
+                        blob = window.dataURLToBlobSync(
                             canvas.toDataURL('image/jpeg', quality)
                         );
                         quality = quality * maxSize / blob.size;
@@ -233,7 +233,7 @@
 
                     // TODO: Replace with native `Canvas::toBlob`:
                     // https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob
-                    var blob = window.dataURLToBlob(canvas.toDataURL('image/png'));
+                    var blob = window.dataURLToBlobSync(canvas.toDataURL('image/png'));
 
                     resolve(blob);
                 };
diff --git a/preload.js b/preload.js
index 0060ebd59a..587ed4a895 100644
--- a/preload.js
+++ b/preload.js
@@ -60,7 +60,7 @@
     window.nodeSetImmediate(function() {});
   }, 1000);
 
-  window.dataURLToBlob = require('blueimp-canvas-to-blob');
+  window.dataURLToBlobSync = require('blueimp-canvas-to-blob');
   window.loadImage = require('blueimp-load-image');
   window.ProxyAgent = require('proxy-agent');
   window.EmojiConvertor = require('emoji-js');