diff --git a/tests/test-push-http.t b/tests/test-push-http.t
--- a/tests/test-push-http.t
+++ b/tests/test-push-http.t
@@ -1,5 +1,12 @@
 #require killdaemons
 
+  $ cat << EOF >> $HGRCPATH
+  > [experimental]
+  > # drop me once bundle2 is the default,
+  > # added to get test change early.
+  > bundle2-exp = True
+  > EOF
+
   $ hg init test
   $ cd test
   $ echo a > a
@@ -67,7 +74,8 @@ expect success
   remote: adding manifests
   remote: adding file changes
   remote: added 1 changesets with 1 changes to 1 files
-  remote: changegroup hook: HG_NODE=ba677d0156c1196c1a699fa53f390dcfc3ce3872 HG_SOURCE=serve HG_TXNID=TXN:* HG_URL=remote:http:127.0.0.1: (glob)
+  remote: pushkey hook: HG_KEY=ba677d0156c1196c1a699fa53f390dcfc3ce3872 HG_NAMESPACE=phases HG_NEW=0 HG_OLD=1 HG_RET=1
+  remote: changegroup hook: HG_BUNDLE2=1 HG_NODE=ba677d0156c1196c1a699fa53f390dcfc3ce3872 HG_SOURCE=serve HG_TXNID=TXN:* HG_URL=remote:http:127.0.0.1: (glob)
   % serve errors
   $ hg rollback
   repository tip rolled back to revision 0 (undo serve)
@@ -83,7 +91,8 @@ expect success, server lacks the httphea
   remote: adding manifests
   remote: adding file changes
   remote: added 1 changesets with 1 changes to 1 files
-  remote: changegroup hook: HG_NODE=ba677d0156c1196c1a699fa53f390dcfc3ce3872 HG_SOURCE=serve HG_TXNID=TXN:* HG_URL=remote:http:127.0.0.1: (glob)
+  remote: pushkey hook: HG_KEY=ba677d0156c1196c1a699fa53f390dcfc3ce3872 HG_NAMESPACE=phases HG_NEW=0 HG_OLD=1 HG_RET=1
+  remote: changegroup hook: HG_BUNDLE2=1 HG_NODE=ba677d0156c1196c1a699fa53f390dcfc3ce3872 HG_SOURCE=serve HG_TXNID=TXN:* HG_URL=remote:http:127.0.0.1: (glob)
   % serve errors
   $ hg rollback
   repository tip rolled back to revision 0 (undo serve)
@@ -99,7 +108,8 @@ expect success, server lacks the unbundl
   remote: adding manifests
   remote: adding file changes
   remote: added 1 changesets with 1 changes to 1 files
-  remote: changegroup hook: HG_NODE=ba677d0156c1196c1a699fa53f390dcfc3ce3872 HG_SOURCE=serve HG_TXNID=TXN:* HG_URL=remote:http:127.0.0.1: (glob)
+  remote: pushkey hook: HG_KEY=ba677d0156c1196c1a699fa53f390dcfc3ce3872 HG_NAMESPACE=phases HG_NEW=0 HG_OLD=1 HG_RET=1
+  remote: changegroup hook: HG_BUNDLE2=1 HG_NODE=ba677d0156c1196c1a699fa53f390dcfc3ce3872 HG_SOURCE=serve HG_TXNID=TXN:* HG_URL=remote:http:127.0.0.1: (glob)
   % serve errors
   $ hg rollback
   repository tip rolled back to revision 0 (undo serve)
@@ -120,6 +130,9 @@ expect push success, phase change failur
   remote: adding manifests
   remote: adding file changes
   remote: added 1 changesets with 1 changes to 1 files
+  remote: prepushkey hook: HG_BUNDLE2=1 HG_KEY=ba677d0156c1196c1a699fa53f390dcfc3ce3872 HG_NAMESPACE=phases HG_NEW=0 HG_NODE=ba677d0156c1196c1a699fa53f390dcfc3ce3872 HG_OLD=1 HG_PENDING=$TESTTMP/test HG_PHASES_MOVED=1 HG_SOURCE=serve HG_TXNID=TXN:* HG_URL=remote:http:127.0.0.1: (glob)
+  remote: pushkey-abort: prepushkey hook exited with status 1
+  updating ba677d0156c1 to public failed!
   % serve errors
 
 expect phase change success