Index: Src/GoogleApis.Auth/OAuth2/UserCredential.cs
===================================================================
--- a/Src/GoogleApis.Auth/OAuth2/UserCredential.cs
+++ b/Src/GoogleApis.Auth/OAuth2/UserCredential.cs
@@ -65,7 +65,7 @@
         }
 
         /// <summary>Gets the user identity.</summary>
-        public string UderId
+        public string UserId
         {
             get { return userId; }
         }