diff --git a/SabreTools.Helper/Dats/Filter.cs b/SabreTools.Helper/Dats/Filter.cs
index eea95409..385e5cfb 100644
--- a/SabreTools.Helper/Dats/Filter.cs
+++ b/SabreTools.Helper/Dats/Filter.cs
@@ -485,7 +485,7 @@ namespace SabreTools.Helper.Dats
 					}
 
 					// Check if a match is found with the regex
-					found |= Regex.IsMatch(needle, regexStraw, RegexOptions.IgnoreCase);
+					found |= Regex.IsMatch(needle, regexStraw, RegexOptions.IgnoreCase | RegexOptions.CultureInvariant);
 				}
 			}