diff --git a/src/NzbDrone.Core/ImportLists/RadarrList2/IMDb/IMDbListSettings.cs b/src/NzbDrone.Core/ImportLists/RadarrList2/IMDb/IMDbListSettings.cs
index 7547733f27..7cf18332b7 100644
--- a/src/NzbDrone.Core/ImportLists/RadarrList2/IMDb/IMDbListSettings.cs
+++ b/src/NzbDrone.Core/ImportLists/RadarrList2/IMDb/IMDbListSettings.cs
@@ -10,7 +10,7 @@ public IMDbSettingsValidator()
         {
             RuleFor(c => c.ListId)
                 .Matches(@"^top250$|^popular$|^ls\d+$|^ur\d+$")
-                .WithMessage("List ID mist be 'top250', 'popular', an IMDb List ID of the form 'ls12345678' or an IMDb user watchlist of the form 'ur12345678'");
+                .WithMessage("List ID must be 'top250', 'popular', an IMDb List ID of the form 'ls12345678' or an IMDb user watchlist of the form 'ur12345678'");
         }
     }