diff --git a/docs/latex/wx/tex2rtf.ini b/docs/latex/wx/tex2rtf.ini
index c4c404d4f0..799b248c9a 100644
--- a/docs/latex/wx/tex2rtf.ini
+++ b/docs/latex/wx/tex2rtf.ini
@@ -50,6 +50,7 @@ ignoreInput = "ltx.tex"
 %\pythonnote [1] {}
 \perlnote [1] {{\bf \fcol{blue}{wxPerl note:}} #1}
 %\perlnote [1] {}
+\arg [1] {{\it #1}}
 
 ; make tex2rtf understand \hbox{} macro:
 \hbox [1] {#1}
diff --git a/docs/latex/wx/tex2rtf_css.ini b/docs/latex/wx/tex2rtf_css.ini
index 6f8162557c..8665d9cbbe 100644
--- a/docs/latex/wx/tex2rtf_css.ini
+++ b/docs/latex/wx/tex2rtf_css.ini
@@ -51,6 +51,7 @@ htmlStylesheet = "wx.css"
 %\pythonnote [1] {}
 \perlnote [1] {{\bf \fcol{blue}{wxPerl note:}} #1}
 %\perlnote [1] {}
+\arg [1] {{\it #1}}
 
 ; make tex2rtf understand \hbox{} macro:
 \hbox [1] {#1}