diff --git a/src/NzbDrone.Core/Parser/Parser.cs b/src/NzbDrone.Core/Parser/Parser.cs
index 51340483d..e03b3c4c2 100644
--- a/src/NzbDrone.Core/Parser/Parser.cs
+++ b/src/NzbDrone.Core/Parser/Parser.cs
@@ -442,7 +442,7 @@ namespace NzbDrone.Core.Parser
         private static readonly Regex CleanQualityBracketsRegex = new Regex(@"\[[a-z0-9 ._-]+\]$",
                                                                    RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
-        private static readonly Regex ReleaseGroupRegex = new Regex(@"-(?<releasegroup>[a-z0-9]+(?<part2>-[a-z0-9]+)?(?!.+?(?:480p|720p|1080p|2160p)))(?<!(?:WEB-DL|Blu-Ray|480p|720p|1080p|2160p|DTS-HD|DTS-X|DTS-MA|DTS-ES|[ ._]\d{4}-\d{2}|-\d{2})(?:\k<part2>)?)(?:\b|[-._ ]|$)|[-._ ]\[(?<releasegroup>[a-z0-9]+)\]$",
+        private static readonly Regex ReleaseGroupRegex = new Regex(@"-(?<releasegroup>[a-z0-9]+(?<part2>-[a-z0-9]+)?(?!.+?(?:480p|720p|1080p|2160p)))(?<!(?:WEB-DL|Blu-Ray|480p|720p|1080p|2160p|DTS-HD|DTS-X|DTS-MA|DTS-ES|-ES|-EN|-CAT|[ ._]\d{4}-\d{2}|-\d{2})(?:\k<part2>)?)(?:\b|[-._ ]|$)|[-._ ]\[(?<releasegroup>[a-z0-9]+)\]$",
                                                                 RegexOptions.IgnoreCase | RegexOptions.Compiled);