diff --git a/installer/picard-setup.nsi.in b/installer/picard-setup.nsi.in
index 6a1ac6cac..ded879200 100644
--- a/installer/picard-setup.nsi.in
+++ b/installer/picard-setup.nsi.in
@@ -84,6 +84,8 @@ ReserveFile "${NSISDIR}\Plugins\x86-unicode\InstallOptions.dll"
 !macroend
 
 ; Language files
+; See languages available in NSIS at
+; https://sourceforge.net/p/nsis/code/HEAD/tree/NSIS/trunk/Contrib/Language%20files/
 !insertmacro LOAD_LANGUAGE "English"
 ; !insertmacro LOAD_LANGUAGE "Arabic"
 !insertmacro LOAD_LANGUAGE "Albanian"