diff --git a/contrib/pg_buffercache/pg_buffercache_pages.c b/contrib/pg_buffercache/pg_buffercache_pages.c
index 3df04c98959..5a3d78d03d5 100644
--- a/contrib/pg_buffercache/pg_buffercache_pages.c
+++ b/contrib/pg_buffercache/pg_buffercache_pages.c
@@ -366,7 +366,7 @@ pg_buffercache_numa_pages(PG_FUNCTION_ARGS)
 
 		/* Used to determine the NUMA node for all OS pages at once */
 		os_page_ptrs = palloc0(sizeof(void *) * os_page_count);
-		os_page_status = palloc(sizeof(uint64) * os_page_count);
+		os_page_status = palloc(sizeof(int) * os_page_count);
 
 		/* Fill pointers for all the memory pages. */
 		idx = 0;