diff --git a/doc/texinfo/gmsh.texi b/doc/texinfo/gmsh.texi
index 75acb832b2942f565ad59d974f8218a7375d33eb..edc45e05f89e6d0afc2c97ce2a77ad157acfd965 100644
--- a/doc/texinfo/gmsh.texi
+++ b/doc/texinfo/gmsh.texi
@@ -986,10 +986,10 @@ parsing of the script file:
 @end example
 
 Such @w{@var{expression}s} are used in most of Gmsh's scripting
-commands. When @code{~@{@var{expression-cst}@}} is appended to a string
+commands. When @code{~@{@var{expression}@}} is appended to a string
 @var{string}, the result is a new string formed by the concatenation of
 @var{string}, @code{_} (an underscore) and the value of the
-@var{expression-cst}. This is most useful in loops (@pxref{Loops and
+@var{expression}. This is most useful in loops (@pxref{Loops and
 conditionals}), where it permits to define unique strings
 automatically. For example,
 @example