diff --git a/src/include/executor/spi.h b/src/include/executor/spi.h
index 58346be492..4a38e207e8 100644
--- a/src/include/executor/spi.h
+++ b/src/include/executor/spi.h
@@ -88,5 +88,8 @@ extern Datum SPI_getbinval(HeapTuple tuple, TupleDesc tupdesc, int fnumber, bool
 extern char *SPI_gettype(TupleDesc tupdesc, int fnumber);
 extern Oid	SPI_gettypeid(TupleDesc tupdesc, int fnumber);
 extern char *SPI_getrelname(Relation rel);
+extern void	*SPI_palloc (Size size);
+extern void	*SPI_repalloc(void *pointer, Size size);
+extern void	SPI_pfree(void *pointer);
 
 #endif							/* SPI_H */