diff --git a/driver/lexor.lex b/driver/lexor.lex
index fd4777505..0de3ac90a 100644
--- a/driver/lexor.lex
+++ b/driver/lexor.lex
@@ -19,7 +19,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #if !defined(WINNT) && !defined(macintosh)
-#ident "$Id: lexor.lex,v 1.1 2000/10/08 22:36:56 steve Exp $"
+#ident "$Id: lexor.lex,v 1.2 2000/10/28 17:51:01 steve Exp $"
 #endif
 
 # include  <string.h>
@@ -44,7 +44,7 @@
 
 <CTOKENS>"-S" { return CT_S; }
 
-<CTOKENS>"-t"[a-zA-Z0-9]+ {
+<CTOKENS>"-t"[a-zA-Z0-9\-_]+ {
       yylval.text = strdup(yytext+2);
       return CT_t; }