diff --git a/lib/vmpooler/pool_manager.rb b/lib/vmpooler/pool_manager.rb
index 4437d01..f233904 100644
--- a/lib/vmpooler/pool_manager.rb
+++ b/lib/vmpooler/pool_manager.rb
@@ -48,6 +48,10 @@ module Vmpooler
           )
             begin
               Socket.getaddrinfo(vm, nil)
+
+              Timeout::timeout(5) {
+                TCPSocket.new vm, 22
+              }
             rescue
             end