diff --git a/src/ce_synmemo.pas b/src/ce_synmemo.pas
index a1a0478b..90e03bd2 100644
--- a/src/ce_synmemo.pas
+++ b/src/ce_synmemo.pas
@@ -655,7 +655,7 @@ begin
   inherited;
   if (Button = mbMiddle) and (Shift = [ssCtrl]) then
     Font.Size := fDefaultFontSize
-  //TODO-cLCL&LAZ-specific: test this feature under gtk2/linux on next release, should work
+  // note: Window only
   else if Button = mbExtra1 then
     fPositions.back
   else if Button = mbExtra2 then