diff --git a/hgext3rd/lfs/wrapper.py b/hgext3rd/lfs/wrapper.py
--- a/hgext3rd/lfs/wrapper.py
+++ b/hgext3rd/lfs/wrapper.py
@@ -12,7 +12,6 @@
 from mercurial import (
     error,
     filelog,
-    node,
     revlog,
     util,
 )
diff --git a/remotefilelog/fileserverclient.py b/remotefilelog/fileserverclient.py
--- a/remotefilelog/fileserverclient.py
+++ b/remotefilelog/fileserverclient.py
@@ -590,7 +590,8 @@
             self._lfsprefetch(fileids)
 
     def _lfsprefetch(self, fileids):
-        if not _lfsmod or not hasattr(self.repo.svfs, 'lfslocalblobstore'):
+        if not _lfsmod or not util.safehasattr(
+                self.repo.svfs, 'lfslocalblobstore'):
             return
         if not _lfsmod.wrapper.candownload(self.repo):
             return