diff --git a/src/lib/file-uploader.js b/src/lib/file-uploader.js
index c6bd45bad24f190316f3d0bb1d377cece94fb1be..901147770203085d8c9b52e4c0f6e7faa94fd969 100644
--- a/src/lib/file-uploader.js
+++ b/src/lib/file-uploader.js
@@ -108,6 +108,7 @@ const costumeUpload = function (fileData, fileType, costumeName, storage, handle
         break;
     }
     default:
+        log.warn(`Encountered unexpected file type: ${fileType}`);
         return;
     }
 
@@ -160,6 +161,7 @@ const soundUpload = function (fileData, fileType, soundName, storage, handleSoun
         break;
     }
     default:
+        log.warn(`Encountered unexpected file type: ${fileType}`);
         return;
     }
 
@@ -209,6 +211,7 @@ const spriteUpload = function (fileData, fileType, spriteName, storage, handleSp
         return;
     }
     default: {
+        log.warn(`Encountered unexpected file type: ${fileType}`);
         return;
     }
     }