diff --git a/src/Microsoft.AspNetCore.Authentication.Google/GoogleAppBuilderExtensions.cs b/src/Microsoft.AspNetCore.Authentication.Google/GoogleAppBuilderExtensions.cs
index fe693a61b7..85a193d82b 100644
--- a/src/Microsoft.AspNetCore.Authentication.Google/GoogleAppBuilderExtensions.cs
+++ b/src/Microsoft.AspNetCore.Authentication.Google/GoogleAppBuilderExtensions.cs
@@ -13,7 +13,8 @@ namespace Microsoft.AspNetCore.Builder
     public static class GoogleAppBuilderExtensions
     {
         /// <summary>
-        /// Adds the <see cref="GoogleMiddleware"/> middleware to the specified <see cref="IApplicationBuilder"/>, which enables Google authentication capabilities.
+        /// Adds the <see cref="GoogleMiddleware"/> middleware to the specified <see cref="IApplicationBuilder"/>,
+        /// which enables Google authentication capabilities.
         /// </summary>
         /// <param name="app">The <see cref="IApplicationBuilder"/> to add the middleware to.</param>
         /// <returns>A reference to this instance after the operation has completed.</returns>
@@ -28,7 +29,8 @@ namespace Microsoft.AspNetCore.Builder
         }
 
         /// <summary>
-        /// Adds the <see cref="GoogleMiddleware"/> middleware to the specified <see cref="IApplicationBuilder"/>, which enables Google authentication capabilities.
+        /// Adds the <see cref="GoogleMiddleware"/> middleware to the specified <see cref="IApplicationBuilder"/>,
+        /// which enables Google authentication capabilities.
         /// </summary>
         /// <param name="app">The <see cref="IApplicationBuilder"/> to add the middleware to.</param>
         /// <param name="options">A <see cref="GoogleOptions"/> that specifies options for the middleware.</param>
@@ -39,6 +41,7 @@ namespace Microsoft.AspNetCore.Builder
             {
                 throw new ArgumentNullException(nameof(app));
             }
+
             if (options == null)
             {
                 throw new ArgumentNullException(nameof(options));
diff --git a/src/Microsoft.AspNetCore.Authentication.Google/GoogleDefaults.cs b/src/Microsoft.AspNetCore.Authentication.Google/GoogleDefaults.cs
index c17ff6b2ab..ef6fae9bc1 100644
--- a/src/Microsoft.AspNetCore.Authentication.Google/GoogleDefaults.cs
+++ b/src/Microsoft.AspNetCore.Authentication.Google/GoogleDefaults.cs
@@ -3,9 +3,12 @@
 
 namespace Microsoft.AspNetCore.Authentication.Google
 {
+    /// <summary>
+    /// Default values for Google authentication
+    /// </summary>
     public static class GoogleDefaults
     {
-        public const string AuthenticationScheme = "Google";
+        public static readonly string AuthenticationScheme = "Google";
 
         public static readonly string AuthorizationEndpoint = "https://accounts.google.com/o/oauth2/auth";
 
diff --git a/src/Microsoft.AspNetCore.Authentication.Google/GoogleHandler.cs b/src/Microsoft.AspNetCore.Authentication.Google/GoogleHandler.cs
index affde917aa..6e3ee36939 100644
--- a/src/Microsoft.AspNetCore.Authentication.Google/GoogleHandler.cs
+++ b/src/Microsoft.AspNetCore.Authentication.Google/GoogleHandler.cs
@@ -22,7 +22,10 @@ namespace Microsoft.AspNetCore.Authentication.Google
         {
         }
 
-        protected override async Task<AuthenticationTicket> CreateTicketAsync(ClaimsIdentity identity, AuthenticationProperties properties, OAuthTokenResponse tokens)
+        protected override async Task<AuthenticationTicket> CreateTicketAsync(
+            ClaimsIdentity identity,
+            AuthenticationProperties properties,
+            OAuthTokenResponse tokens)
         {
             // Get the Google user
             var request = new HttpRequestMessage(HttpMethod.Get, Options.UserInformationEndpoint);
@@ -33,7 +36,8 @@ namespace Microsoft.AspNetCore.Authentication.Google
 
             var payload = JObject.Parse(await response.Content.ReadAsStringAsync());
 
-            var ticket = new AuthenticationTicket(new ClaimsPrincipal(identity), properties, Options.AuthenticationScheme);
+            var principal = new ClaimsPrincipal(identity);
+            var ticket = new AuthenticationTicket(principal, properties, Options.AuthenticationScheme);
             var context = new OAuthCreatingTicketContext(ticket, Context, Options, Backchannel, tokens, payload);
 
             var identifier = GoogleHelper.GetId(payload);
@@ -100,8 +104,11 @@ namespace Microsoft.AspNetCore.Authentication.Google
             return authorizationEndpoint;
         }
 
-        private static void AddQueryString(IDictionary<string, string> queryStrings, AuthenticationProperties properties,
-            string name, string defaultValue = null)
+        private static void AddQueryString(
+            IDictionary<string, string> queryStrings,
+            AuthenticationProperties properties,
+            string name,
+            string defaultValue = null)
         {
             string value;
             if (!properties.Items.TryGetValue(name, out value))
diff --git a/src/Microsoft.AspNetCore.Authentication.Google/GoogleHelper.cs b/src/Microsoft.AspNetCore.Authentication.Google/GoogleHelper.cs
index 0a763d5696..336536c512 100644
--- a/src/Microsoft.AspNetCore.Authentication.Google/GoogleHelper.cs
+++ b/src/Microsoft.AspNetCore.Authentication.Google/GoogleHelper.cs
@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
-using Microsoft.Extensions.Internal;
 using Newtonsoft.Json.Linq;
 
 namespace Microsoft.AspNetCore.Authentication.Google
diff --git a/src/Microsoft.AspNetCore.Authentication.Google/GoogleMiddleware.cs b/src/Microsoft.AspNetCore.Authentication.Google/GoogleMiddleware.cs
index eb98e447b3..5f8afaff2f 100644
--- a/src/Microsoft.AspNetCore.Authentication.Google/GoogleMiddleware.cs
+++ b/src/Microsoft.AspNetCore.Authentication.Google/GoogleMiddleware.cs
@@ -69,7 +69,10 @@ namespace Microsoft.AspNetCore.Authentication.Google
         /// <summary>
         /// Provides the <see cref="AuthenticationHandler{T}"/> object for processing authentication-related requests.
         /// </summary>
-        /// <returns>An <see cref="AuthenticationHandler{T}"/> configured with the <see cref="GoogleOptions"/> supplied to the constructor.</returns>
+        /// <returns>
+        /// An <see cref="AuthenticationHandler{T}"/> configured with the <see cref="GoogleOptions"/>
+        /// supplied to the constructor.
+        /// </returns>
         protected override AuthenticationHandler<GoogleOptions> CreateHandler()
         {
             return new GoogleHandler(Backchannel);