diff --git a/src/backend/access/heap/tuptoaster.c b/src/backend/access/heap/tuptoaster.c
index e729e77a54e..a211c0b9e40 100644
--- a/src/backend/access/heap/tuptoaster.c
+++ b/src/backend/access/heap/tuptoaster.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/access/heap/tuptoaster.c,v 1.81.2.1 2008/02/23 19:11:55 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/access/heap/tuptoaster.c,v 1.81.2.2 2008/02/29 17:47:47 tgl Exp $
  *
  *
  * INTERFACE ROUTINES
@@ -1093,7 +1093,8 @@ toast_save_datum(Relation rel, Datum value,
 	struct
 	{
 		struct varlena hdr;
-		char		data[TOAST_MAX_CHUNK_SIZE];
+		char		data[TOAST_MAX_CHUNK_SIZE];	/* make struct big enough */
+		int32		align_it;	/* ensure struct is aligned well enough */
 	}			chunk_data;
 	int32		chunk_size;
 	int32		chunk_seq = 0;