diff --git a/l10n_id_taxform_bukti_potong_pph_common/__openerp__.py b/l10n_id_taxform_bukti_potong_pph_common/__openerp__.py
index b1b9ac4..9723e0d 100644
--- a/l10n_id_taxform_bukti_potong_pph_common/__openerp__.py
+++ b/l10n_id_taxform_bukti_potong_pph_common/__openerp__.py
@@ -3,7 +3,7 @@
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 {
     "name": "Indonesia - Common Feature for Bukti Potong",
-    "version": "8.0.5.1.0",
+    "version": "8.0.5.1.1",
     "category": "localization",
     "website": "https://opensynergy-indonesia.com/",
     "author": "OpenSynergy Indonesia",
diff --git a/l10n_id_taxform_bukti_potong_pph_common/models/bukti_potong_pph.py b/l10n_id_taxform_bukti_potong_pph_common/models/bukti_potong_pph.py
index 53e4da0..2879492 100644
--- a/l10n_id_taxform_bukti_potong_pph_common/models/bukti_potong_pph.py
+++ b/l10n_id_taxform_bukti_potong_pph_common/models/bukti_potong_pph.py
@@ -583,3 +583,13 @@ def onchange_period_id(self):
     @api.onchange("pemotong_pajak_id")
     def onchange_pemotong_pajak_id(self):
         self.ttd_id = False
+
+    @api.multi
+    def unlink(self):
+        strWarning = _("You can only delete data on draft state")
+        for bukti_potong in self:
+            if bukti_potong.state != "draft":
+                if not self.env.context.get("force_unlink", False):
+                    raise UserError(strWarning)
+        _super = super(BuktiPotongPPh, self)
+        _super.unlink()