diff --git a/ChangeLog b/ChangeLog
index bdb13da7..c6c7109c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2008-11-24  Eric Blake  <ebb9@byu.net>
+
+	Fix typo in AS_MESSAGE_LOG_FD patch.
+	* lib/m4sugar/m4sh.m4 (AS_ERROR): Check correct condition.
+
 2008-11-23  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
 	More reliable signal handling in Autotest.
diff --git a/lib/m4sugar/m4sh.m4 b/lib/m4sugar/m4sh.m4
index 0faa9341..be9ff3be 100644
--- a/lib/m4sugar/m4sh.m4
+++ b/lib/m4sugar/m4sh.m4
@@ -842,7 +842,7 @@ m4_defun_init([AS_ERROR],
 [m4_append_uniq([_AS_CLEANUP],
   [m4_divert_text([M4SH-INIT-FN], [_AS_ERROR_PREPARE[]])])],
 [m4_ifvaln([$2], [{ AS_SET_STATUS([$2])])]dnl
-[as_fn_error "_AS_QUOTE([$1])"m4_ifval([AS_MESSAGE_LOG_FD],
+[as_fn_error "_AS_QUOTE([$1])"m4_ifval(AS_MESSAGE_LOG_FD,
   [ "$LINENO" AS_MESSAGE_LOG_FD])[]m4_ifval([$2], [; }])])