diff --git a/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannRequestGenerator.cs b/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannRequestGenerator.cs
index 65b4236da..4812d12a6 100644
--- a/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannRequestGenerator.cs
+++ b/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannRequestGenerator.cs
@@ -9,6 +9,7 @@ using AngleSharp.Html.Dom;
 using AngleSharp.Html.Parser;
 using Newtonsoft.Json.Linq;
 using NLog;
+using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Indexers.Definitions.Cardigann;
@@ -1119,7 +1120,7 @@ namespace NzbDrone.Core.Indexers.Cardigann
                                 {
                                     var inputValue = ApplyGoTemplateText(input.Value, variables);
 
-                                    if (!string.IsNullOrWhiteSpace(inputValue) || search.AllowEmptyInputs)
+                                    if (inputValue.IsNotNullOrWhiteSpace() || search.AllowEmptyInputs)
                                     {
                                         queryCollection.Add(input.Key, inputValue);
                                     }