diff --git a/docs/latex/wx/filename.tex b/docs/latex/wx/filename.tex
index 111c24c567..6a79a412d5 100644
--- a/docs/latex/wx/filename.tex
+++ b/docs/latex/wx/filename.tex
@@ -23,6 +23,10 @@ wxFileName provides functions for working with the file attributes.
 
 No base class
 
+\wxheading{Include files}
+
+<wx/filename.h>
+
 \wxheading{Data structures}
 
 Many wxFileName methods accept the path format argument which is by\rtfsp