--- a/tests/test-revlog.t	Sat Aug 13 12:15:49 2016 +0900
+++ b/tests/test-revlog.t	Sat Aug 13 12:18:58 2016 +0900
@@ -12,4 +12,4 @@
        0         0      19     -1       2 99e0332bd498 000000000000 000000000000
        1        19      12      0       3 6674f57a23d8 99e0332bd498 000000000000
   $ hg debugdata a.i 1 2>&1 | egrep 'Error:.*decoded'
-  (mercurial.mpatch.)?mpatchError: patch cannot be decoded (re)
+  (mercurial\.\w+\.mpatch\.)?mpatchError: patch cannot be decoded (re)