diff --git a/server/ws.rb b/server/ws.rb
index 10ce184..c293a13 100755
--- a/server/ws.rb
+++ b/server/ws.rb
@@ -46,8 +46,8 @@
       connections.each{|conn| conn.send(str)}
     end
   end
-  ws.onclose do
+  ws_conn.onclose do
     puts "Client disconnected"
-    connections.delete(ws)
+    connections.delete(ws_conn)
   end
 end