diff --git a/SWIG/Source/CParse/parser.y b/SWIG/Source/CParse/parser.y
index 5d0f454d6..69942df17 100644
--- a/SWIG/Source/CParse/parser.y
+++ b/SWIG/Source/CParse/parser.y
@@ -32,7 +32,7 @@ char cvsroot_parser_y[] = "$Header$";
  * ----------------------------------------------------------------------------- */
 
 extern int   yylex();
-extern void  yyerror (const char *s);
+extern void  yyerror (const char *e);
 
 /* scanner.cxx */