--- a/tests/test-bundle2-format.t	Tue Jun 20 17:25:57 2017 -0400
+++ b/tests/test-bundle2-format.t	Tue Jun 20 17:31:18 2017 -0400
@@ -229,7 +229,7 @@
   > [experimental]
   > evolution=createmarkers
   > [ui]
-  > ssh=python "$TESTDIR/dummyssh"
+  > ssh=$PYTHON "$TESTDIR/dummyssh"
   > logtemplate={rev}:{node|short} {phase} {author} {bookmarks} {desc|firstline}
   > [web]
   > push_ssl = false