1 files changed, 3 insertions, 2 deletions
diff --git a/protocol.c b/protocol.c
index d8281f0..244e4d3 100644
--- a/protocol.c
+++ b/protocol.c
@@ -1217,8 +1217,9 @@ enet_protocol_send_reliable_outgoing_commands (ENetHost * host, ENetPeer * peer)
        if (channel != NULL && 
            outgoingCommand -> sendAttempts < 1 && 
            ! (outgoingCommand -> reliableSequenceNumber % ENET_PEER_RELIABLE_WINDOW_SIZE) &&
-           channel -> usedReliableWindows & ((((1 << ENET_PEER_FREE_RELIABLE_WINDOWS) - 1) << reliableWindow) | 
-             (((1 << ENET_PEER_FREE_RELIABLE_WINDOWS) - 1) >> (ENET_PEER_RELIABLE_WINDOW_SIZE - reliableWindow))))
+           (channel -> reliableWindows [(reliableWindow + ENET_PEER_RELIABLE_WINDOWS - 1) % ENET_PEER_RELIABLE_WINDOWS] >= ENET_PEER_RELIABLE_WINDOW_SIZE ||
+             channel -> usedReliableWindows & ((((1 << ENET_PEER_FREE_RELIABLE_WINDOWS) - 1) << reliableWindow) | 
+               (((1 << ENET_PEER_FREE_RELIABLE_WINDOWS) - 1) >> (ENET_PEER_RELIABLE_WINDOW_SIZE - reliableWindow)))))
          break;
   
        commandSize = commandSizes [outgoingCommand -> command.header.command & ENET_PROTOCOL_COMMAND_MASK];