diff --git a/tools/test-backend b/tools/test-backend
index 248f7322f9..dc3b366b36 100755
--- a/tools/test-backend
+++ b/tools/test-backend
@@ -59,7 +59,6 @@ not_yet_fully_covered = {
     'zerver/lib/i18n.py',
     'zerver/lib/notifications.py',
     'zerver/lib/send_email.py',
-    'zerver/lib/upload.py',
     # Other lib files that ideally would coverage, but aren't sorted
     'zerver/__init__.py',
     'zerver/filters.py',
diff --git a/zerver/lib/upload.py b/zerver/lib/upload.py
index 82d6a6047c..926088dc78 100644
--- a/zerver/lib/upload.py
+++ b/zerver/lib/upload.py
@@ -515,7 +515,7 @@ class LocalUploadBackend(ZulipUploadBackend):
 if settings.LOCAL_UPLOADS_DIR is not None:
     upload_backend = LocalUploadBackend()  # type: ZulipUploadBackend
 else:
-    upload_backend = S3UploadBackend()
+    upload_backend = S3UploadBackend()  # nocoverage
 
 def delete_message_image(path_id: str) -> bool:
     return upload_backend.delete_message_image(path_id)