diff --git a/lib/puma/reactor.rb b/lib/puma/reactor.rb
index f86e358d..11144573 100644
--- a/lib/puma/reactor.rb
+++ b/lib/puma/reactor.rb
@@ -50,7 +50,7 @@ module Puma
       @input << client
       @selector.wakeup
       true
-    rescue ClosedQueueError
+    rescue ClosedQueueError, IOError # Ignore if selector is already closed
       false
     end