diff --git a/gas/ChangeLog b/gas/ChangeLog
index bce371f280..33cb949b27 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2012-11-20  Yufeng Zhang  <yufeng.zhang@arm.com>
+
+	* config/tc-aarch64.c (first_error_fmt): Add ATTRIBUTE_UNUSED to the
+	local variable "ret".
+
 2012-11-20  David S. Miller  <davem@davemloft.net>
 
 	* config/tc-sparc.c (md_parse_option): Only certain arch
diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c
index e7a2fe0959..bf72a1392a 100644
--- a/gas/config/tc-aarch64.c
+++ b/gas/config/tc-aarch64.c
@@ -643,7 +643,7 @@ first_error_fmt (const char *format, ...)
 
   if (! error_p ())
     {
-      int ret;
+      int ret ATTRIBUTE_UNUSED;
       va_start (args, format);
       ret = vsnprintf (buffer, size, format, args);
       know (ret <= size - 1 && ret >= 0);