--- a/tests/test-wireproto-bundle1.t	Wed Mar 11 18:28:26 2020 +0100
+++ b/tests/test-wireproto-bundle1.t	Fri Mar 13 19:11:43 2020 +0700
@@ -3,7 +3,7 @@
   > [defaults]
   > amend=-d "0 0"
   > [ui]
-  > ssh=python "$RUNTESTDIR/dummyssh"
+  > ssh = "$PYTHON" "$RUNTESTDIR/dummyssh"
   > [phases]
   > publish = False
   > [extensions]