diff --git a/source/numerics.tex b/source/numerics.tex
index 7b1f65deae..4a9345b3b8 100644
--- a/source/numerics.tex
+++ b/source/numerics.tex
@@ -6082,7 +6082,7 @@
 \end{formula}
 
 \indexlibraryglobal{fisher_f_distribution}%
-\indexlibrarymember{result_type}{fisher_distribution}%
+\indexlibrarymember{result_type}{fisher_f_distribution}%
 \begin{codeblock}
 namespace std {
   template<class RealType = double>