diff --git a/ChangeLog b/ChangeLog
index 4a48d21e..1c34436d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+	* data/bison.simple (YYLEX): Fix the declaration when
+	%pure-parser.
+
 2002-06-20  Akim Demaille  <akim@epita.fr>
 
 	* data/bison.simple (yysymprint): Don't print the token number,
diff --git a/data/bison.simple b/data/bison.simple
index c5ce1386..3aa24765 100644
--- a/data/bison.simple
+++ b/data/bison.simple
@@ -537,9 +537,9 @@ while (0)
 
 b4_pure_if(
 [#ifdef YYLEX_PARAM
-# define YYLEX	yylex (&yylval, b4_location_if([&yylloc, ])YYLEX_PARAM)
+# define YYLEX	yylex (&yylval[]b4_location_if([, &yylloc]), YYLEX_PARAM)
 #else
-# define YYLEX	yylex (&yylval, b4_location_if([&yylloc, ]))
+# define YYLEX	yylex (&yylval[]b4_location_if([, &yylloc]))
 #endif],
 [#define YYLEX	yylex ()])