diff --git a/docs/latex/wx/cppconst.tex b/docs/latex/wx/cppconst.tex
index 91ac999f2b..36c2885acc 100644
--- a/docs/latex/wx/cppconst.tex
+++ b/docs/latex/wx/cppconst.tex
@@ -157,6 +157,7 @@ also \helpref{wxCHECK\_VERSION}{wxcheckversion}}
 \twocolitem{wxUSE\_XXX}{if defined as $1$, feature XXX is active
 (the symbols of this form are always defined, use \#if and not \#ifdef to test
  for them)}
+\twocolitem{\_UNICODE and UNICODE}{both are defined if wxUSE\_UNICODE is set to $1$}
 \twocolitem{wxUSE\_GUI}{this particular feature test macro is defined to $1$
 when compiling or using the library with the GUI features activated, if it is
 defined as $0$, only wxBase is available.}