diff --git a/generate/template.go b/generate/template.go
index d927caf..a8f1173 100644
--- a/generate/template.go
+++ b/generate/template.go
@@ -49,6 +49,11 @@ func (v *Var_N) Delete(t time.Time) {
 	ptr.Delete(t)
 }
 
+func (v *Var_N) DeleteSync(t time.Time) {
+	ptr := (*persist.Var)(unsafe.Pointer(v))
+	ptr.Delete(t)
+}
+
 func (v *Var_N) History() ([]Var_N, error) {
 	ptr := (*persist.Var)(unsafe.Pointer(v))
 	h, err := ptr.History()