diff --git a/ChangeLog b/ChangeLog
index 8b8c125e..3c1863eb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2004-09-27  Akim Demaille  <akim@epita.fr>
+
+	* data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
+
 2004-09-27  Akim Demaille  <akim@epita.fr>
 
 	* data/lalr1.cc (b4_parse_param_decl_1): New.
diff --git a/data/yacc.c b/data/yacc.c
index a5fb4e69..575d2624 100644
--- a/data/yacc.c
+++ b/data/yacc.c
@@ -527,9 +527,9 @@ while (0)
      fprintf (File, "%d.%d-%d.%d",			\
               (Loc).first_line, (Loc).first_column,	\
               (Loc).last_line,  (Loc).last_column)
+# else
+#  define YY_LOCATION_PRINT(File, Loc) ((void) 0)
 # endif
-#else
-# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
 #endif