diff --git a/quinn-udp/src/windows.rs b/quinn-udp/src/windows.rs
index b0e776e27..ae4167be0 100644
--- a/quinn-udp/src/windows.rs
+++ b/quinn-udp/src/windows.rs
@@ -102,7 +102,7 @@ impl UdpSocketState {
             set_socket_option(
                 &*socket.0,
                 WinSock::IPPROTO_IPV6,
-                WinSock::IPV6_ECN,
+                WinSock::IPV6_RECVECN,
                 OPTION_ON,
             )?;
         }