diff --git a/Octokit.Reactive/Clients/ObservableIssueCommentsClient.cs b/Octokit.Reactive/Clients/ObservableIssueCommentsClient.cs
index afa1a77c..f0011cf2 100644
--- a/Octokit.Reactive/Clients/ObservableIssueCommentsClient.cs
+++ b/Octokit.Reactive/Clients/ObservableIssueCommentsClient.cs
@@ -7,9 +7,6 @@ namespace Octokit.Reactive
 {
     public class ObservableIssueCommentsClient : IObservableIssueCommentsClient
     {
-        //TODO: Remove this once PR #1335 has been merged
-        public const string ReactionsPreview = "application/vnd.github.squirrel-girl-preview";
-
         readonly IIssueCommentsClient _client;
         readonly IConnection _connection;
 
@@ -66,8 +63,7 @@ namespace Octokit.Reactive
             Ensure.ArgumentNotNullOrEmptyString(name, "name");
             Ensure.ArgumentNotNull(options, "options");
 
-            //TODO: Use AcceptHeaders.ReactionsPreview once PR #1335 has been merged
-            return _connection.GetAndFlattenAllPages<IssueComment>(ApiUrls.IssueComments(owner, name), null, ReactionsPreview, options);
+            return _connection.GetAndFlattenAllPages<IssueComment>(ApiUrls.IssueComments(owner, name), null, AcceptHeaders.ReactionsPreview, options);
         }
 
         /// <summary>
@@ -101,8 +97,7 @@ namespace Octokit.Reactive
             Ensure.ArgumentNotNullOrEmptyString(name, "name");
             Ensure.ArgumentNotNull(options, "options");
 
-            //TODO: Use AcceptHeaders.ReactionsPreview once PR #1335 has been merged
-            return _connection.GetAndFlattenAllPages<IssueComment>(ApiUrls.IssueComments(owner, name, number), null, ReactionsPreview, options);
+            return _connection.GetAndFlattenAllPages<IssueComment>(ApiUrls.IssueComments(owner, name, number), null, AcceptHeaders.ReactionsPreview, options);
         }
 
         /// <summary>
diff --git a/Octokit/Clients/IssueCommentsClient.cs b/Octokit/Clients/IssueCommentsClient.cs
index 3fe3e92c..2bb32b32 100644
--- a/Octokit/Clients/IssueCommentsClient.cs
+++ b/Octokit/Clients/IssueCommentsClient.cs
@@ -11,9 +11,6 @@ namespace Octokit
     /// </remarks>
     public class IssueCommentsClient : ApiClient, IIssueCommentsClient
     {
-        //TODO: Remove this once PR #1335 has been merged
-        public const string ReactionsPreview = "application/vnd.github.squirrel-girl-preview";
-
         /// <summary>
         /// Instantiates a new GitHub Issue Comments API client.
         /// </summary>
@@ -35,8 +32,7 @@ namespace Octokit
             Ensure.ArgumentNotNullOrEmptyString(owner, "owner");
             Ensure.ArgumentNotNullOrEmptyString(name, "name");
 
-            //TODO: Use AcceptHeaders.ReactionsPreview once PR #1335 has been merged
-            return ApiConnection.Get<IssueComment>(ApiUrls.IssueComment(owner, name, id), null, ReactionsPreview);
+            return ApiConnection.Get<IssueComment>(ApiUrls.IssueComment(owner, name, id), null, AcceptHeaders.ReactionsPreview);
         }
 
         /// <summary>
@@ -68,8 +64,7 @@ namespace Octokit
             Ensure.ArgumentNotNullOrEmptyString(name, "name");
             Ensure.ArgumentNotNull(options, "options");
 
-            //TODO: Use AcceptHeaders.ReactionsPreview once PR #1335 has been merged
-            return ApiConnection.GetAll<IssueComment>(ApiUrls.IssueComments(owner, name), null, ReactionsPreview, options);
+            return ApiConnection.GetAll<IssueComment>(ApiUrls.IssueComments(owner, name), null, AcceptHeaders.ReactionsPreview, options);
         }
 
         /// <summary>
@@ -102,8 +97,7 @@ namespace Octokit
             Ensure.ArgumentNotNullOrEmptyString(name, "name");
             Ensure.ArgumentNotNull(options, "options");
 
-            //TODO: Use AcceptHeaders.ReactionsPreview once PR #1335 has been merged
-            return ApiConnection.GetAll<IssueComment>(ApiUrls.IssueComments(owner, name, number), null, ReactionsPreview, options);
+            return ApiConnection.GetAll<IssueComment>(ApiUrls.IssueComments(owner, name, number), null, AcceptHeaders.ReactionsPreview, options);
         }
 
         /// <summary>