diff --git a/docs/latex/wx/function.tex b/docs/latex/wx/function.tex
index ad94c6e4f5..82761cdef1 100644
--- a/docs/latex/wx/function.tex
+++ b/docs/latex/wx/function.tex
@@ -1078,9 +1078,9 @@ or drive name at the beginning.
 
 \membersection{::wxDirExists}\label{functionwxdirexists}
 
-\func{bool}{wxDirExists}{\param{const wxString\& }{dirname}}
+\func{bool}{wxDirExists}{\param{const wxChar *}{dirname}}
 
-Returns true if the path exists.
+Returns true if \arg{dirname} exists and is a directory.
 
 
 \membersection{::wxPathOnly}\label{wxpathonly}