diff --git a/docs/latex/wx/button.tex b/docs/latex/wx/button.tex
index 8dd1d35f22..ac32dad9e1 100644
--- a/docs/latex/wx/button.tex
+++ b/docs/latex/wx/button.tex
@@ -93,7 +93,8 @@ appropriately for the text.}
 \docparam{descriptiveLabel}{Optional label to be used on platforms where
 standard buttons have descriptive rather than generic labels. Mac is one such
 platforms, well-behaved Mac apps should use descriptive labels (e.g. "Save"
-and "Don't Save" instead of "OK" and "Cancel").}
+and "Don't Save" instead of "OK" and "Cancel"). This argument is ignored on
+other platforms.}
 
 \wxheading{See also}