diff --git a/gas/ChangeLog b/gas/ChangeLog
index 830afa5c781..0126fb81f77 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2016-04-07  Andrew Burgess  <andrew.burgess@embecosm.com>
+
+	* config/tc-arc.c (tokenize_flags): Allow greater range of
+	characters into flag names.
+
 2016-04-07  Andrew Burgess  <andrew.burgess@embecosm.com>
 
 	* config/tc-arc.c (find_opcode_match): Handle O_symbol case, add
diff --git a/gas/config/tc-arc.c b/gas/config/tc-arc.c
index 04ccd07d120..154e838974b 100644
--- a/gas/config/tc-arc.c
+++ b/gas/config/tc-arc.c
@@ -1080,7 +1080,8 @@ tokenize_flags (const char *str,
 	  if (num_flags >= nflg)
 	    goto err;
 
-	  flgnamelen = strspn (input_line_pointer, "abcdefghilmnopqrstvwxz");
+	  flgnamelen = strspn (input_line_pointer,
+			       "abcdefghijklmnopqrstuvwxyz0123456789");
 	  if (flgnamelen > MAX_FLAG_NAME_LENGTH)
 	    goto err;