diff --git a/source/containers.tex b/source/containers.tex
index 24f9b424ca..09d642b600 100644
--- a/source/containers.tex
+++ b/source/containers.tex
@@ -20760,7 +20760,7 @@
 
 \indexlibraryctor{layout_left::mapping}%
 \begin{itemdecl}
-template<class OtherExents>
+template<class OtherExtents>
   constexpr explicit(!is_convertible_v<OtherExtents, extents_type>)
     mapping(const layout_right::mapping<OtherExtents>& other) noexcept;
 \end{itemdecl}