diff --git a/src/libutil/cxx/utf8_util.cxx b/src/libutil/cxx/utf8_util.cxx
index 0e7cd39d7d..c69191e8bf 100644
--- a/src/libutil/cxx/utf8_util.cxx
+++ b/src/libutil/cxx/utf8_util.cxx
@@ -230,7 +230,7 @@ TEST_CASE("utf8 normalise") {
 			/* Special case of diacritic */
 			{"13_\u0020\u0308\u0301\u038e\u03ab", "13_ ̈́ΎΫ", RSPAMD_UNICODE_NORM_UNNORMAL},
 			/* Same with zw spaces */
-			{"13\u200C_\u0020\u0308\u0301\u038e\u03ab\u200D", "13_ ̈́ΎΫ",
+			{"13\u200C_\u0020\u0308\u0301\u038e\u03ab", "13_ ̈́ΎΫ",
 					RSPAMD_UNICODE_NORM_UNNORMAL|RSPAMD_UNICODE_NORM_ZERO_SPACES},
 			/* Buffer overflow case */
 			{"u\xC2\xC2\xC2\xC2\xC2\xC2""abcdef""abcdef", "u\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD",