diff --git a/fstest/test_all/config.yaml b/fstest/test_all/config.yaml
index 8a2dd85d2..6d9cd3a63 100644
--- a/fstest/test_all/config.yaml
+++ b/fstest/test_all/config.yaml
@@ -41,15 +41,13 @@ backends:
    remote:   "TestChunkerChunk3bNometaLocal:"
    fastlist: true
    maxfile:  6k
- # Disable chunker with mailru tests until Mailru is fixed - see
- # https://github.com/rclone/rclone/issues/4376
- # - backend:  "chunker"
- #   remote:   "TestChunkerMailru:"
- #   fastlist: true
- # - backend:  "chunker"
- #   remote:   "TestChunkerChunk50bMailru:"
- #   fastlist: true
- #   maxfile:  10k
+ - backend:  "chunker"
+   remote:   "TestChunkerMailru:"
+   fastlist: true
+ - backend:  "chunker"
+   remote:   "TestChunkerChunk50bMailru:"
+   fastlist: true
+   maxfile:  10k
  - backend:  "chunker"
    remote:   "TestChunkerChunk50bYandex:"
    fastlist: true