diff --git a/ExtractConstants.lua b/ExtractConstants.lua
index 9cb195c83300f61775b5b8068b59e822a3aeaf5c..874f9e236234f54d0cafad45611a4d736825a57e 100644
--- a/ExtractConstants.lua
+++ b/ExtractConstants.lua
@@ -123,6 +123,7 @@ local function extractConstant(row, nameIndex, valueIndex, descriptionIndex, pag
 	local names = util.wikiToPlainString(nameCell.content)
 
 	if names == 'n/a'
+	or names == "none"
 	or ignoredConstants[names:match('[%w_]+')] then
 		return
 	end