--- a/tests/test-bundle2-remote-changegroup.t	Thu Jun 15 14:22:39 2017 -0400
+++ b/tests/test-bundle2-remote-changegroup.t	Tue Jun 20 09:45:02 2017 -0400
@@ -74,7 +74,7 @@
 
 Start a simple HTTP server to serve bundles
 
-  $ python "$TESTDIR/dumbhttp.py" -p $HGPORT --pid dumb.pid
+  $ $PYTHON "$TESTDIR/dumbhttp.py" -p $HGPORT --pid dumb.pid
   $ cat dumb.pid >> $DAEMON_PIDS
 
   $ cat >> $HGRCPATH << EOF