diff --git a/parse.c b/parse.c
index f18a8f867..be4920b7a 100644
--- a/parse.c
+++ b/parse.c
@@ -22,7 +22,8 @@
  *
  * parse.c -- sudo parser frontend and comparison routines.
  *
- * Chris Jepeway <jepeway@cs.utk.edu>
+ * This code is derived from software contributed by Chris Jepeway
+ * <jepeway@cs.utk.edu>
  */
 
 #include "config.h"
diff --git a/parse.lex b/parse.lex
index 383a34941..5dc6f5b95 100644
--- a/parse.lex
+++ b/parse.lex
@@ -23,7 +23,8 @@
  *
  * parse.lex -- lexigraphical analyzer for sudo.
  *
- * Chris Jepeway <jepeway@cs.utk.edu>
+ * This code is derived from software contributed by Chris Jepeway
+ * <jepeway@cs.utk.edu>
  */
 
 #include "config.h"
diff --git a/parse.yacc b/parse.yacc
index 717bf80d9..2fbfa8f18 100644
--- a/parse.yacc
+++ b/parse.yacc
@@ -24,7 +24,8 @@
  *
  * parse.yacc -- yacc parser and alias manipulation routines for sudo.
  *
- * Chris Jepeway <jepeway@cs.utk.edu>
+ * This code is derived from software contributed by Chris Jepeway
+ * <jepeway@cs.utk.edu>
  */
 
 #include "config.h"