--- a/tests/test-topic-push-concurrent-on.t	Wed Mar 11 18:28:26 2020 +0100
+++ b/tests/test-topic-push-concurrent-on.t	Fri Mar 13 19:11:43 2020 +0700
@@ -5,7 +5,7 @@
   $ cat << EOF >> $HGRCPATH
   > [ui]
   > logtemplate = {rev} {branch} {get(namespaces, "topics")} {phase} {desc|firstline}\n
-  > ssh =python "$RUNTESTDIR/dummyssh"
+  > ssh = "$PYTHON" "$RUNTESTDIR/dummyssh"
   > [server]
   > concurrent-push-mode=check-related
   > EOF