diff --git a/SocketIOClientSwift/SocketIOClient.swift b/SocketIOClientSwift/SocketIOClient.swift
index 9779f95..0ec1483 100644
--- a/SocketIOClientSwift/SocketIOClient.swift
+++ b/SocketIOClientSwift/SocketIOClient.swift
@@ -169,6 +169,7 @@ public final class SocketIOClient: NSObject, SocketEngineClient, SocketLogClient
             return
         }
         
+        _connecting = true
         addEngine()
         engine?.open(connectParams)