diff --git a/src/backend/executor/spi.c b/src/backend/executor/spi.c
index 77e2cafb10..e3073e42ab 100644
--- a/src/backend/executor/spi.c
+++ b/src/backend/executor/spi.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/executor/spi.c,v 1.133.4.3 2007/08/15 19:16:12 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/executor/spi.c,v 1.133.4.4 2008/10/16 13:23:49 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -642,7 +642,7 @@ SPI_getvalue(HeapTuple tuple, TupleDesc tupdesc, int fnumber)
 
 	SPI_result = 0;
 
-	if (fnumber > tuple->t_data->t_natts || fnumber == 0 ||
+	if (fnumber > tupdesc->natts || fnumber == 0 ||
 		fnumber <= FirstLowInvalidHeapAttributeNumber)
 	{
 		SPI_result = SPI_ERROR_NOATTRIBUTE;
@@ -692,7 +692,7 @@ SPI_getbinval(HeapTuple tuple, TupleDesc tupdesc, int fnumber, bool *isnull)
 {
 	SPI_result = 0;
 
-	if (fnumber > tuple->t_data->t_natts || fnumber == 0 ||
+	if (fnumber > tupdesc->natts || fnumber == 0 ||
 		fnumber <= FirstLowInvalidHeapAttributeNumber)
 	{
 		SPI_result = SPI_ERROR_NOATTRIBUTE;