diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index b7984442dd84..454d1d7695f6 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -819,7 +819,7 @@ static bool io_cqring_event_overflow(struct io_ring_ctx *ctx, u64 user_data,
 	return true;
 }
 
-void io_req_cqe_overflow(struct io_kiocb *req)
+static void io_req_cqe_overflow(struct io_kiocb *req)
 {
 	io_cqring_event_overflow(req->ctx, req->cqe.user_data,
 				req->cqe.res, req->cqe.flags,
diff --git a/io_uring/io_uring.h b/io_uring/io_uring.h
index 1eb65324792a..624ca9076a50 100644
--- a/io_uring/io_uring.h
+++ b/io_uring/io_uring.h
@@ -62,7 +62,6 @@ static inline bool io_should_wake(struct io_wait_queue *iowq)
 }
 
 bool io_cqe_cache_refill(struct io_ring_ctx *ctx, bool overflow);
-void io_req_cqe_overflow(struct io_kiocb *req);
 int io_run_task_work_sig(struct io_ring_ctx *ctx);
 void io_req_defer_failed(struct io_kiocb *req, s32 res);
 bool io_post_aux_cqe(struct io_ring_ctx *ctx, u64 user_data, s32 res, u32 cflags);