diff --git a/tools/benchmark/disk_uring.c b/tools/benchmark/disk_uring.c
index 4831aabc..73c71d28 100644
--- a/tools/benchmark/disk_uring.c
+++ b/tools/benchmark/disk_uring.c
@@ -76,6 +76,7 @@ static int initUring(int fd, struct iovec *iov)
 
     /* See io_uring_setup(2) for io_uring_params.flags you can set */
     memset(&p, 0, sizeof(p));
+    p.flags = IORING_SETUP_SINGLE_ISSUER;
     _ring_fd = _io_uring_setup(QUEUE_DEPTH, &p);
     if (_ring_fd < 0) {
         perror("io_uring_setup");