diff --git a/ivlpp/lexor.lex b/ivlpp/lexor.lex
index 25af28b45..d694216b1 100644
--- a/ivlpp/lexor.lex
+++ b/ivlpp/lexor.lex
@@ -19,7 +19,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #if !defined(WINNT)
-#ident "$Id: lexor.lex,v 1.10 1999/07/17 05:10:13 steve Exp $"
+#ident "$Id: lexor.lex,v 1.11 1999/07/25 00:03:13 steve Exp $"
 #endif
 
 # include  <stdio.h>
@@ -92,6 +92,8 @@ W [ \t\b\f]+
 
 %%
 
+"//".* { ECHO; }
+
   /* detect multiline, c-style comments, passing them directly to the
      output. This is necessary to allow for ignoring directives that
      are included within the comments. */