--- a/tests/test-encoding-align.t	Tue Sep 18 22:40:03 2018 -0400
+++ b/tests/test-encoding-align.t	Tue Sep 18 23:47:21 2018 -0400
@@ -4,7 +4,7 @@
   $ export HGENCODING
   $ hg init t
   $ cd t
-  $ $PYTHON << EOF
+  $ "$PYTHON" << EOF
   > # (byte, width) = (6, 4)
   > s = b"\xe7\x9f\xad\xe5\x90\x8d"
   > # (byte, width) = (7, 7): odd width is good for alignment test