--- a/tests/test-hgweb-json.t	Tue Sep 18 22:40:03 2018 -0400
+++ b/tests/test-hgweb-json.t	Tue Sep 18 23:47:21 2018 -0400
@@ -2196,7 +2196,7 @@
 Commit message with Japanese Kanji 'Noh', which ends with '\x5c'
 
   $ echo foo >> da/foo
-  $ HGENCODING=cp932 hg ci -m `$PYTHON -c 'print("\x94\x5c")'`
+  $ HGENCODING=cp932 hg ci -m `"$PYTHON" -c 'print("\x94\x5c")'`
 
 Commit message with null character