diff --git a/source/numerics.tex b/source/numerics.tex
index b6a8d41685..385a56e5f9 100644
--- a/source/numerics.tex
+++ b/source/numerics.tex
@@ -7499,7 +7499,7 @@
 
 \indexlibrarymember{operator[]}{valarray}%
 \begin{itemdecl}
-const T&  operator[](size_t n) const;
+const T& operator[](size_t n) const;
 T& operator[](size_t n);
 \end{itemdecl}