diff --git a/doc/IOSDocument.md b/doc/IOSDocument.md
index cec1f35..88bd332 100644
--- a/doc/IOSDocument.md
+++ b/doc/IOSDocument.md
@@ -41,6 +41,9 @@ Xcode 4: Open your Info.plist then add a new row URL Types. Set the URL identifi
 	//VKBridge *vkBridge = [[VKBridge alloc] initWithVKAppId:@"5029792"];
 	//[LetsGameAPI instance].vkBridge = vkBridge;
 	
+	//隐藏fb登录
+	[LetsGameAPI disableFB:NO];
+	
 	//隐藏gumptech的logo
 	[LetsGameAPI hiddenLogo:YES];