diff --git a/glossary.tex b/glossary.tex
index 5225a68a2bf85b1ee2671dbf78195b4f76cbf261..178cbd12978641054a65fb671557693677b0a811 100644
--- a/glossary.tex
+++ b/glossary.tex
@@ -1138,7 +1138,8 @@ Set the darker die to `\dicef{6}' and roll the other.  If this roll fails, it fa
 }
 
 \newacronym[
-  description={is the universal way to measure time in \glsentrytext{fenestra}, where one \glsentrytext{cycle} equals sixty days, and, and one sixth of a year},
+  description={is the Gnomish art of measuring time.
+  By its count, the current year is \arabic{fenestraYear}},
   name={Gnomish Machine Time (GMT)},
   prefix={a\space},
   parent={cosmology},