diff --git a/src/util/Constants.js b/src/util/Constants.js
index d840e3d73..3761c3f2b 100644
--- a/src/util/Constants.js
+++ b/src/util/Constants.js
@@ -19,7 +19,7 @@ const AllowedImageFormats = ['webp', 'png', 'jpg', 'jpeg', 'gif'];
 const AllowedImageSizes = Array.from({ length: 9 }, (e, i) => 2 ** (i + 4));
 
 function makeImageUrl(root, { format = 'webp', size } = {}) {
-  if (typeof size !== 'number') throw new TypeError('INVALID_TYPE', 'size', 'number');
+  if (!['undefined', 'number'].includes(typeof size)) throw new TypeError('INVALID_TYPE', 'size', 'number');
   if (format && !AllowedImageFormats.includes(format)) throw new Error('IMAGE_FORMAT', format);
   if (size && !AllowedImageSizes.includes(size)) throw new RangeError('IMAGE_SIZE', size);
   return `${root}.${format}${size ? `?size=${size}` : ''}`;