diff --git a/fold_back.tex b/fold_back.tex
index ea65c56d0f74c2bde35ea6a954dbe3ee074c9ab3..6311c1adcf4c38a01d8bd76536d49bf4d9bffa37 100644
--- a/fold_back.tex
+++ b/fold_back.tex
@@ -60,7 +60,7 @@
   \glsdesc{action}
   \par
   \vspace{1em}
-  \subsubsection{\Glsfmtlongpl{tn}}
+  \subsubsection{\Glsfmtlong{tn}}
   \glsdesc{tn}.
 }