diff --git a/src/backend/storage/buffer/bufmgr.c b/src/backend/storage/buffer/bufmgr.c
index 32f501bbd21..1fee559b7c6 100644
--- a/src/backend/storage/buffer/bufmgr.c
+++ b/src/backend/storage/buffer/bufmgr.c
@@ -4598,7 +4598,7 @@ FlushBuffer(BufferDesc *buf, SMgrRelation reln, IOObject io_object,
 	 * When a strategy is not in use, the write can only be a "regular" write
 	 * of a dirty shared buffer (IOCONTEXT_NORMAL IOOP_WRITE).
 	 */
-	pgstat_count_io_op_time(IOOBJECT_RELATION, io_context,
+	pgstat_count_io_op_time(io_object, io_context,
 							IOOP_WRITE, io_start, 1, BLCKSZ);
 
 	pgBufferUsage.shared_blks_written++;
@@ -4629,7 +4629,7 @@ FlushUnlockedBuffer(BufferDesc *buf, SMgrRelation reln,
 	Buffer		buffer = BufferDescriptorGetBuffer(buf);
 
 	BufferLockAcquire(buffer, buf, BUFFER_LOCK_SHARE_EXCLUSIVE);
-	FlushBuffer(buf, reln, IOOBJECT_RELATION, IOCONTEXT_NORMAL);
+	FlushBuffer(buf, reln, io_object, io_context);
 	BufferLockUnlock(buffer, buf);
 }