diff --git a/unicodetools/src/main/resources/org/unicode/text/UCD/UnicodeInvariantTest.txt b/unicodetools/src/main/resources/org/unicode/text/UCD/UnicodeInvariantTest.txt
index 8ddb4163e..36668102b 100644
--- a/unicodetools/src/main/resources/org/unicode/text/UCD/UnicodeInvariantTest.txt
+++ b/unicodetools/src/main/resources/org/unicode/text/UCD/UnicodeInvariantTest.txt
@@ -871,6 +871,11 @@ Let $TwoVietnameseReadingMarks = [\p{U15.1.0:ccc=6}]
 # A more principled (if less practically useful) statement is that the
 # dual-conjoining Hangul characters are exactly the Hangul vowels.
 \p{HST=V} = \p{GCB=V} & \p{Script=Hangul}
+# The other types are still straightforwardly related to their GCB counterparts.
+\p{HST=L}   = \p{GCB=L}
+\p{HST=LV}  = \p{GCB=LV}
+\p{HST=LVT} = \p{GCB=LVT}
+\p{HST=T}   = \p{GCB=T}
 
 ##########################
 # Emoji