--- a/tests/test-narrow-commit.t	Tue Mar 20 18:02:16 2018 -0700
+++ b/tests/test-narrow-commit.t	Mon Mar 26 22:18:36 2018 -0400
@@ -28,7 +28,11 @@
 
   $ cd ..
 
-  $ hg clone --narrow ssh://user@dummy/master narrow --include inside
+(The lfs extension does nothing here, but this test ensures that its hook that
+determines whether to add the lfs requirement, respects the narrow boundaries.)
+
+  $ hg --config extensions.lfs= clone --narrow ssh://user@dummy/master narrow \
+  >    --include inside
   requesting all changes
   adding changesets
   adding manifests