diff --git a/quinn-udp/tests/tests.rs b/quinn-udp/tests/tests.rs
index 2b690a4723..088b73febf 100644
--- a/quinn-udp/tests/tests.rs
+++ b/quinn-udp/tests/tests.rs
@@ -93,6 +93,9 @@ fn test_send_recv(send: &Socket, recv: &Socket, transmit: Transmit) {
     let send_state = UdpSocketState::new((&send).into()).unwrap();
     let recv_state = UdpSocketState::new((&recv).into()).unwrap();
 
+    // Reverse non-blocking flag set by `UdpSocketState` to make the test non-racy
+    recv.set_nonblocking(false).unwrap();
+
     send_state
         .send((&send).into(), slice::from_ref(&transmit))
         .unwrap();