diff --git a/src/queue.c b/src/queue.c
index 1552a8b9..d29d422b 100644
--- a/src/queue.c
+++ b/src/queue.c
@@ -196,9 +196,9 @@ unsigned __io_uring_flush_sq(struct io_uring *ring)
 		 * Ensure kernel sees the SQE updates before the tail update.
 		 */
 		if (!(ring->flags & IORING_SETUP_SQPOLL))
-			io_uring_smp_store_release(sq->ktail, tail);
-		else
 			IO_URING_WRITE_ONCE(*sq->ktail, tail);
+		else
+			io_uring_smp_store_release(sq->ktail, tail);
 	}
 	/*
 	 * This _may_ look problematic, as we're not supposed to be reading