diff --git a/fstest/test_all/config.yaml b/fstest/test_all/config.yaml
index e6e3f056f..d825cb3ff 100644
--- a/fstest/test_all/config.yaml
+++ b/fstest/test_all/config.yaml
@@ -481,6 +481,8 @@ backends:
    ignore:
      - TestIntegration/FsMkdir/FsEncoding/punctuation
      - TestIntegration/FsMkdir/FsEncoding/invalid_UTF-8
+   env:
+      - RCLONE_NO_CHECK_CERTIFICATE=true
    fastlist: false
    ignoretests:
      - cmd/bisync