diff --git a/glossary.tex b/glossary.tex
index 57fd222933813b170a2430dff0c41876472226ab..17d04d165fc2e45e489a09046f4e7274ccc0477a 100644
--- a/glossary.tex
+++ b/glossary.tex
@@ -2045,6 +2045,7 @@ Set the darker die to `\dicef{6}' and roll the other.  If this roll fails, it fa
   prefix={a\space},
   category={indexed},
   symbol={\adfhangingflatleafleft},
+  parent={fenestra},
   description={within \glsentrytext{fenestra} can grow large, strange, and deadly},
 }