Index: TECH/DateTime/impl/DateTimeAPI.cls.xml
===================================================================
diff -u -r3826 -r3905
--- TECH/DateTime/impl/DateTimeAPI.cls.xml	(.../DateTimeAPI.cls.xml)	(revision 3826)
+++ TECH/DateTime/impl/DateTimeAPI.cls.xml	(.../DateTimeAPI.cls.xml)	(revision 3905)
@@ -232,7 +232,7 @@
 <Method name="IsVandaag">
 <FormalSpec>Dag:%Date</FormalSpec>
 <ReturnType>%Boolean</ReturnType>
-<Implementation><![CDATA[	quit ##class(TECH.DateTime).IsVandaag()
+<Implementation><![CDATA[	quit ##class(TECH.DateTime).IsVandaag(Dag)
 ]]></Implementation>
 </Method>