diff --git a/lib/ui/stdmenus.inc b/lib/ui/stdmenus.inc
index 1d13e0c146..c403ea202f 100644
--- a/lib/ui/stdmenus.inc
+++ b/lib/ui/stdmenus.inc
@@ -584,6 +584,8 @@ Menuset
 	Menu "examples"
 		Item "Braille Manual|B" "help-open Braille"
 		Item "Feynman-diagram Manual|F" "help-open FeynmanDiagrams"
+		Item "Knitr Manual|K" "help-open knitr"
+		Item "LilyPond Manual|P" "help-open lilypond"
 		Item "Linguistics Manual|L" "help-open linguistics"
 		Item "Multicolumn Manual|M" "help-open multicol"
 		Item "Sweave Manual|S" "help-open sweave"