diff --git a/Source/SocketEngine.swift b/Source/SocketEngine.swift
index 5eb023e..37fa951 100644
--- a/Source/SocketEngine.swift
+++ b/Source/SocketEngine.swift
@@ -762,6 +762,7 @@ extension SocketEngine {
             connected = true
             probing = false
             polling = false
+            client?.engineDidOpen!("Connect")
         }
     }
     
diff --git a/Source/SocketEngineClient.swift b/Source/SocketEngineClient.swift
index 776dc5a..7609862 100644
--- a/Source/SocketEngineClient.swift
+++ b/Source/SocketEngineClient.swift
@@ -30,4 +30,5 @@ import Foundation
     func engineDidClose(reason: String)
     func parseEngineMessage(msg: String)
     func parseEngineBinaryData(data: NSData)
+    optional func engineDidOpen(reason: String)
 }