--- a/tests/test-clone-pull-corruption.t	Wed Apr 22 13:56:30 2015 -0700
+++ b/tests/test-clone-pull-corruption.t	Thu Apr 23 22:39:21 2015 +0900
@@ -16,7 +16,7 @@
 
   $ cd ../corrupted
   $ echo "[hooks]" >> .hg/hgrc
-  $ echo "pretxncommit = sh -c 'sleep 5; exit 1'" >> .hg/hgrc
+  $ echo 'pretxncommit = sh -c "sleep 5; exit 1"' >> .hg/hgrc
 
 start a commit...