diff --git a/gas/ChangeLog b/gas/ChangeLog
index f9b5afeb56c..47651013f81 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,7 @@
+2016-04-16  Andrew Burgess  <andrew.burgess@embecosm.com>
+
+	* config/tc-arc.c (arc_option): Allow NPS400 in .cpu directive.
+
 2016-04-15  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>
 
 	* config/tc-mips.c (md_begin): Remove useless assignment.
diff --git a/gas/config/tc-arc.c b/gas/config/tc-arc.c
index 17e0b9aa229..169b05c348f 100644
--- a/gas/config/tc-arc.c
+++ b/gas/config/tc-arc.c
@@ -897,6 +897,10 @@ arc_option (int ignore ATTRIBUTE_UNUSED)
 	{
 	  md_parse_option (OPTION_MCPU, "archs");
 	}
+      else if (!strcmp ("NPS400", cpu))
+	{
+	  md_parse_option (OPTION_MCPU, "nps400");
+	}
       else
 	as_fatal (_("could not find the architecture"));