diff --git a/tests/test-push-hook-lock.t b/tests/test-push-hook-lock.t
--- a/tests/test-push-hook-lock.t
+++ b/tests/test-push-hook-lock.t
@@ -15,8 +15,12 @@
   updating to branch default
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
+  $ cat <<EOF > $TESTTMP/debuglocks-pretxn-hook.sh
+  > hg debuglocks
+  > true
+  > EOF
   $ echo '[hooks]' >> 2/.hg/hgrc
-  $ echo 'pretxnchangegroup.a = hg debuglocks; true' >> 2/.hg/hgrc
+  $ echo "pretxnchangegroup.a = sh $TESTTMP/debuglocks-pretxn-hook.sh" >> 2/.hg/hgrc
   $ echo 'changegroup.push = hg push -qf ../1' >> 2/.hg/hgrc
 
   $ echo bar >> 3/foo