diff --git a/kOS.xml b/kOS.xml
index 4195e38..51d2349 100644
--- a/kOS.xml
+++ b/kOS.xml
@@ -17,7 +17,7 @@
     <keywords keywords="not;and;or;true;false" ignore_case="false" />
     
     <!-- Instructions and keywords -->
-    <keywords keywords="add;all;batch;break;compile;copy;declare;delete;deploy;do;else;file;for;from;function;global;if;in;is;list;local;lock;log;off;on;once;parameter;preserve;print;remove;rename;return;run;set;step;switch;then;to;toggle;unlock;unset;until;wait;when" />
+    <keywords keywords="add;all;batch;break;compile;copy;declare;defined;delete;deploy;do;else;file;for;from;function;global;if;in;is;list;local;lock;log;off;on;once;parameter;preserve;print;remove;rename;return;run;set;step;switch;then;to;toggle;unlock;unset;until;wait;when" />
     
     <!-- Directives -->
     <keywords keywords="@LAZYGLOBAL" />