diff --git a/source/numerics.tex b/source/numerics.tex
index 46f4366f70..296c93f56a 100644
--- a/source/numerics.tex
+++ b/source/numerics.tex
@@ -8744,7 +8744,7 @@
 indicated operation to the elements of the argument array and selected elements
 of the
 \tcode{valarray<T>}
-object to which the mask object refers.
+object to which the \tcode{mask_array} object refers.
 \end{itemdescr}
 
 \rSec3[mask.array.fill]{Fill function}