diff --git a/string_utils/string_utils.go b/string_utils/string_utils.go
index 29c6cbba6e19c4d1bffbb1797eeb6779f87ef70f..553cc06782917345410fcee0f237ee2bcc956960 100644
--- a/string_utils/string_utils.go
+++ b/string_utils/string_utils.go
@@ -61,6 +61,7 @@ var NonOfficialWhitespaceChars = []string{
 	"\u200B", // Zero width space
 	"\u200C", // Zero width non-joiner
 	"\u200D", // Zero width joiner
+	"\u200E", // Left-to-right mark
 	"\u2060", // Word joiner
 	"\u202C", // Pop directional formatting
 	"\uFEFF", // Zero width no-break space