diff --git a/hbs2-core/lib/HBS2/Net/Proto/RefChan.hs b/hbs2-core/lib/HBS2/Net/Proto/RefChan.hs
index 343d9e4d..17d6f644 100644
--- a/hbs2-core/lib/HBS2/Net/Proto/RefChan.hs
+++ b/hbs2-core/lib/HBS2/Net/Proto/RefChan.hs
@@ -133,7 +133,7 @@ data RefChanRound e =
   RefChanRound
   { _refChanRoundKey     :: HashRef -- ^ hash of the Propose transaction
   , _refChanHeadKey      :: RefChanHeadKey (Encryption e)
-  , _refChanRoundTS      :: TimeSpec
+  , _refChanRoundTTL     :: TimeSpec
   , _refChanRoundClosed  :: TVar Bool
   , _refChanRoundPropose :: TVar (Maybe (ProposeTran e)) -- ^ propose transaction itself
   , _refChanRoundTrans   :: TVar (HashSet HashRef)
@@ -359,10 +359,15 @@ refChanUpdateProto self pc adapter msg = do
 
         -- если не смогли сохранить транзу, то и Accept разослать
         -- не сможем
+        -- это правильно, так как транза содержит ссылку на RefChanId
+        -- следовательно, для другого рефчана будет другая транза
         hash <- MaybeT $ liftIO $ putBlock sto (serialise msg)
         ts <- liftIO getTimeCoarse
 
-        defRound <- RefChanRound @e (HashRef hash) refchanKey ts
+        let toWait = TimeoutSec (fromIntegral $ 2 * view refChanHeadWaitAccept headBlock)
+        let ttl = ts + fromNanoSecs (fromIntegral $ toNanoSeconds toWait)
+
+        defRound <- RefChanRound @e (HashRef hash) refchanKey ttl
                        <$> newTVarIO False
                        <*> newTVarIO Nothing
                        <*> newTVarIO (HashSet.singleton (HashRef hash)) -- save propose
@@ -375,6 +380,9 @@ refChanUpdateProto self pc adapter msg = do
 
         lift $ gossip msg
 
+        -- FIXME: random-delay-to-avoid-race
+        --   выглядит не очень хорошо, 100ms
+        --   и не гарантирует от гонок
         pause @'Seconds 0.10
 
         -- FIXME: check-if-we-authorized
diff --git a/hbs2-peer/app/RefChan.hs b/hbs2-peer/app/RefChan.hs
index 80414ab3..5609ca0c 100644
--- a/hbs2-peer/app/RefChan.hs
+++ b/hbs2-peer/app/RefChan.hs
@@ -188,17 +188,13 @@ refChanWorker env brains = do
             se <- MaybeT $ find @e x id
 
             closed <- readTVarIO (view refChanRoundClosed se)
-            let ts = view refChanRoundTS se
+            let ttl = view refChanRoundTTL se
 
-            -- FIXME: use-wait-from-head
-            let expired = toNanoSecs (now - ts) > toNanoSecs ( round (60*1e9) )
-
-            when (closed || expired) do
+            when (closed || ttl <= now) do
               lift $ expire x
               atomically $ modifyTVar rounds (HashSet.delete x)
               debug $ "CLEANUP ROUND" <+> pretty x
 
-
     refChanWriter = forever do
       pause @'Seconds 1
       _ <- atomically $ peekTQueue (view refChanWorkerEnvWriteQ env)