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-rw-r--r--lib/rainbows/coolio/heartbeat.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/rainbows/coolio/heartbeat.rb b/lib/rainbows/coolio/heartbeat.rb
index fcfbb0f..adea248 100644
--- a/lib/rainbows/coolio/heartbeat.rb
+++ b/lib/rainbows/coolio/heartbeat.rb
@@ -9,7 +9,7 @@ class Rainbows::Coolio::Heartbeat < Coolio::TimerWatcher
   KATO = Rainbows::Coolio::KATO
   CONN = Rainbows::Coolio::CONN
   Rainbows.config!(self, :keepalive_timeout)
-  Rainbows.at_quit { KATO.each_key { |client| client.timeout? }.clear }
+  Rainbows.at_quit { KATO.each_key(&:timeout?).clear }
 
   def on_timer
     if (ot = KEEPALIVE_TIMEOUT) >= 0