diff --git a/98_TadoAPI.pm b/98_TadoAPI.pm
index 7c63821..54c9b54 100644
--- a/98_TadoAPI.pm
+++ b/98_TadoAPI.pm
@@ -68,6 +68,8 @@ sub TadoAPI_Initialize {
 
     $hash->{DefFn}    = \&TadoAPI_Define;
     $hash->{InitFn}   = \&TadoAPI_Init;
+    $hash->{UndefFn}  = \&TadoAPI_Undefine;
+    $hash->{DeleteFn} = \&TadoAPI_Delete;
     $hash->{SetFn}    = \&TadoAPI_Set;
     $hash->{GetFn}    = \&TadoAPI_Get;
     $hash->{AttrList} = ""
@@ -389,9 +391,7 @@ sub TadoAPI_Catch {
 sub TadoAPI_Undefine {
     my $hash = shift;
     my $name = shift;
-
     RemoveInternalTimer($hash);
-
     return;
 }