diff --git a/frontend/src/Store/Actions/episodeHistoryActions.js b/frontend/src/Store/Actions/episodeHistoryActions.js
index 9b1396bea..aeec04991 100644
--- a/frontend/src/Store/Actions/episodeHistoryActions.js
+++ b/frontend/src/Store/Actions/episodeHistoryActions.js
@@ -86,11 +86,8 @@ export const actionHandlers = handleThunks({
     } = payload;
 
     const promise = createAjaxRequest({
-      url: '/history/failed',
-      method: 'POST',
-      data: {
-        id: historyId
-      }
+      url: `/history/failed/${historyId}`,
+      method: 'POST'
     }).request;
 
     promise.done(() => {
diff --git a/frontend/src/Store/Actions/historyActions.js b/frontend/src/Store/Actions/historyActions.js
index 3d4a52d13..2d478e009 100644
--- a/frontend/src/Store/Actions/historyActions.js
+++ b/frontend/src/Store/Actions/historyActions.js
@@ -244,11 +244,9 @@ export const actionHandlers = handleThunks({
     }));
 
     const promise = createAjaxRequest({
-      url: '/history/failed',
+      url: `/history/failed/${id}`,
       method: 'POST',
-      data: {
-        id
-      }
+      dataType: 'json'
     }).request;
 
     promise.done(() => {
diff --git a/src/Sonarr.Api.V3/History/HistoryModule.cs b/src/Sonarr.Api.V3/History/HistoryModule.cs
index 59e5b5389..f20806d23 100644
--- a/src/Sonarr.Api.V3/History/HistoryModule.cs
+++ b/src/Sonarr.Api.V3/History/HistoryModule.cs
@@ -1,9 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using Nancy;
 using NzbDrone.Core.Datastore;
-using NzbDrone.Core.DecisionEngine;
 using NzbDrone.Core.DecisionEngine.Specifications;
 using NzbDrone.Core.Download;
 using NzbDrone.Core.History;
@@ -33,6 +31,8 @@ namespace Sonarr.Api.V3.History
             Get("/since",  x => GetHistorySince());
             Get("/series",  x => GetSeriesHistory());
             Post("/failed",  x => MarkAsFailed());
+            Post(@"/failed/(?<id>[\d]{1,10})", x => MarkAsFailed((int)x.Id));
+
         }
 
         protected HistoryResource MapToResource(EpisodeHistory model, bool includeSeries, bool includeEpisode)
@@ -143,10 +143,18 @@ namespace Sonarr.Api.V3.History
             return _historyService.GetBySeries(seriesId, eventType).Select(h => MapToResource(h, includeSeries, includeEpisode)).ToList();
         }
 
+        // v4 TODO: Getting the ID from the form is atypical, consider removing.
         private object MarkAsFailed()
         {
             var id = (int)Request.Form.Id;
+
+            return MarkAsFailed(id);
+        }
+
+        private object MarkAsFailed(int id)
+        {
             _failedDownloadService.MarkAsFailed(id);
+
             return new object();
         }
     }