diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c
index 11058e20bdcc..3c1538b8c8f4 100644
--- a/io_uring/rsrc.c
+++ b/io_uring/rsrc.c
@@ -517,7 +517,7 @@ static int __io_sqe_buffers_update(struct io_ring_ctx *ctx,
 		}
 
 		ctx->user_bufs[i] = imu;
-		*io_get_tag_slot(ctx->buf_data, offset) = tag;
+		*io_get_tag_slot(ctx->buf_data, i) = tag;
 	}
 
 	if (needs_switch)