diff --git a/src/backend/catalog/heap.c b/src/backend/catalog/heap.c
index 9b95f3c2d7036cc936ab38ee5aa32a3f6e86e941..324e20026e3c37388b984793b4aec3ffc9533f17 100644
--- a/src/backend/catalog/heap.c
+++ b/src/backend/catalog/heap.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/catalog/heap.c,v 1.287 2005/07/13 22:46:09 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/catalog/heap.c,v 1.288 2005/07/28 07:38:33 neilc Exp $
  *
  *
  * INTERFACE ROUTINES
@@ -141,7 +141,7 @@ static FormData_pg_attribute a7 = {
 	true, 'p', 'i', true, false, false, true, 0
 };
 
-static Form_pg_attribute SysAtt[] = {&a1, &a2, &a3, &a4, &a5, &a6, &a7};
+static const Form_pg_attribute SysAtt[] = {&a1, &a2, &a3, &a4, &a5, &a6, &a7};
 
 /*
  * This function returns a Form_pg_attribute pointer for a system attribute.
@@ -440,7 +440,7 @@ AddNewAttributeTuples(Oid new_rel_oid,
 					  bool oidislocal,
 					  int oidinhcount)
 {
-	Form_pg_attribute *dpp;
+	const Form_pg_attribute *dpp;
 	int			i;
 	HeapTuple	tup;
 	Relation	rel;