diff --git a/src/lib/file-uploader.js b/src/lib/file-uploader.js
index 901147770203085d8c9b52e4c0f6e7faa94fd969..35a4cf02b6e57ae5c6b819a2734e79112c728516 100644
--- a/src/lib/file-uploader.js
+++ b/src/lib/file-uploader.js
@@ -178,7 +178,7 @@ const soundUpload = function (fileData, fileType, soundName, storage, handleSoun
 const spriteUpload = function (fileData, fileType, spriteName, storage, handleSprite) {
     switch (fileType) {
     case '':
-    case 'archive/zip': { // We think this is a .sprite2 or .sprite3 file
+    case 'application/zip': { // We think this is a .sprite2 or .sprite3 file
         handleSprite(new Uint8Array(fileData));
         return;
     }