diff --git a/source/utilities.tex b/source/utilities.tex
index 3e144da194..688d827f86 100644
--- a/source/utilities.tex
+++ b/source/utilities.tex
@@ -2751,7 +2751,7 @@
 \indexlibraryglobal{tuple_size}%
 \begin{itemdecl}
 template<class... Types>
-  struct tuple_size<tuple<Types...>> : public integral_constant<size_t, sizeof...(Types)> { };
+  struct tuple_size<tuple<Types...>> : integral_constant<size_t, sizeof...(Types)> { };
 \end{itemdecl}
 
 \indexlibraryglobal{tuple_element}%