diff --git a/l10n_es_aeat_mod123/__manifest__.py b/l10n_es_aeat_mod123/__manifest__.py
index 15e80fecb37..956da6a4fc4 100644
--- a/l10n_es_aeat_mod123/__manifest__.py
+++ b/l10n_es_aeat_mod123/__manifest__.py
@@ -3,7 +3,7 @@
 
 {
     "name": "AEAT modelo 123",
-    "version": "15.0.1.0.0",
+    "version": "16.0.1.0.0",
     "category": "Localisation/Accounting",
     "author": "Tecnativa, "
     "Spanish Localization Team, "
diff --git a/l10n_es_aeat_mod123/models/mod123.py b/l10n_es_aeat_mod123/models/mod123.py
index ee748064337..12030e585fe 100644
--- a/l10n_es_aeat_mod123/models/mod123.py
+++ b/l10n_es_aeat_mod123/models/mod123.py
@@ -90,7 +90,7 @@ def _compute_casilla08(self):
             report.casilla_08 = report.casilla_06 + report.casilla_07
 
     def calculate(self):
-        pred = super(L10nEsAeatMod123Report, self).calculate()
+        pred = super().calculate()
         move_lines02 = self.tax_line_ids.filtered(lambda r: r.field_number == 2)
         move_lines03 = self.tax_line_ids.filtered(lambda r: r.field_number == 3)
         self.casilla_02 = move_lines02.amount
diff --git a/l10n_es_aeat_mod123/views/mod123_view.xml b/l10n_es_aeat_mod123/views/mod123_view.xml
index 2f567ed1aab..6ada585a9b8 100644
--- a/l10n_es_aeat_mod123/views/mod123_view.xml
+++ b/l10n_es_aeat_mod123/views/mod123_view.xml
@@ -58,14 +58,16 @@
                         />
                     </group>
                 </group>
-                <group
+                <separator
                     string="Tax lines"
-                    name="group_tax_lines"
-                    colspan="4"
                     attrs="{'invisible': [('state', '=', 'draft')]}"
-                >
-                    <field name="tax_line_ids" nolabel="1" readonly="1" />
-                </group>
+                />
+                <field
+                    name="tax_line_ids"
+                    nolabel="1"
+                    readonly="1"
+                    attrs="{'invisible': [('state', '=', 'draft')]}"
+                />
             </group>
             <form position="inside">
                 <div class="oe_chatter">