diff --git a/docs/latex/wx/function.tex b/docs/latex/wx/function.tex
index 07fe1ee4bd..c65fa24a53 100644
--- a/docs/latex/wx/function.tex
+++ b/docs/latex/wx/function.tex
@@ -606,7 +606,7 @@ is remembered between the 2 program runs.}
 
 Pops up a directory selector dialog. The arguments have the same meaning as
 those of wxDirDialog::wxDirDialog(). The message is displayed at the top,
-and the default_path, if specified, is set as the initial selection.
+and the default\_path, if specified, is set as the initial selection.
 
 The application must check for an empty return value (if the user pressed
 Cancel). For example: