diff --git a/mm/vmscan.c b/mm/vmscan.c
index 28ba2b06fc7d..20dd72c98813 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -5990,7 +5990,8 @@ static void shrink_node(pg_data_t *pgdat, struct scan_control *sc)
 			set_bit(PGDAT_WRITEBACK, &pgdat->flags);
 
 		/* Allow kswapd to start writing pages during reclaim.*/
-		if (sc->nr.unqueued_dirty == sc->nr.file_taken)
+		if (sc->nr.unqueued_dirty &&
+			sc->nr.unqueued_dirty == sc->nr.file_taken)
 			set_bit(PGDAT_DIRTY, &pgdat->flags);
 
 		/*