diff --git a/lib/dalli/socket.rb b/lib/dalli/socket.rb
index 93601123..26828217 100644
--- a/lib/dalli/socket.rb
+++ b/lib/dalli/socket.rb
@@ -49,6 +49,14 @@ class SSLSocket < ::OpenSSL::SSL::SSLSocket
       def options
         io.options
       end
+
+      def wait_readable(timeout)
+        IO.select([self], nil, nil, timeout)
+      end
+
+      def wait_writable(timeout)
+        IO.select(nil, [self], nil, timeout)
+      end
     end
 
     class TCP < TCPSocket