--- a/hgext/lfs/wireprotolfsserver.py	Thu May 24 21:54:31 2018 +0900
+++ b/hgext/lfs/wireprotolfsserver.py	Thu May 31 09:19:09 2018 -0400
@@ -18,6 +18,7 @@
 
 from mercurial import (
     pycompat,
+    util,
 )
 
 from . import blobstore
@@ -40,6 +41,9 @@
     if not rctx.repo.ui.configbool('experimental', 'lfs.serve'):
         return False
 
+    if not util.safehasattr(rctx.repo.svfs, 'lfslocalblobstore'):
+        return False
+
     if not req.dispatchpath:
         return False