diff --git a/src/citeproc.js b/src/citeproc.js
index db915f6..6938f67 100644
--- a/src/citeproc.js
+++ b/src/citeproc.js
@@ -14381,7 +14381,6 @@ CSL.parseParticles = function(){
         REX.family = new RegExp("^((?:" + LIST.family.space.join("|") + ")(\\s+)|(?:" + LIST.family.nospace.join("|") + "([^\\s]))).*", "i");
         REX.given.full_comma = new RegExp(".*?(,[\\s]*)(" + LIST.given.full.join("|") + ")$", "i");
         REX.given.full_lower = new RegExp(".*?([ ]+)(" + LIST.given.full.join("|") + ")$");
-        var X = "Tom du".match(REX.given.full_lower)
         var allInTheFamily = LIST.family.space
         for (var key in LIST.given.partial) {
             REX.given.partial[key] = new RegExp(".*?(\\s+)(" + LIST.given.partial[key].join("|") + ")$", "i");