diff --git a/checkbox-ng/plainbox/impl/unit/test_testplan.py b/checkbox-ng/plainbox/impl/unit/test_testplan.py
index 73d76b4d3..850c6228a 100644
--- a/checkbox-ng/plainbox/impl/unit/test_testplan.py
+++ b/checkbox-ng/plainbox/impl/unit/test_testplan.py
@@ -508,3 +508,30 @@ def test_nested_tesplan__multiple_namespaces(self):
         self.assertIsInstance(qual_list[1].matcher, OperatorMatcher)
         self.assertEqual(qual_list[1].matcher.value, 'ns2::Bar')
         self.assertEqual(qual_list[1].inclusive, True)
+
+
+class TestTestPlanUnitSupport(TestCase):
+
+    def setUp(self):
+        self.provider1 = mock.Mock(name='provider1', spec_set=IProvider1)
+        self.provider1.namespace = 'ns1'
+        self.tp1 = TestPlanUnit({
+            "id": "tp1",
+            "unit": "test plan",
+            "name": "An example test plan 1",
+            "mandatory_include": "mandatory_job certification_status=blocker",
+            "include": "job1 certification_status=non-blocker",
+        }, provider=self.provider1)
+        self.provider1.unit_list = []
+        self.tp1.provider_list = [self.provider1,]
+        self.provider1.unit_list.append(self.tp1)
+
+    def test_inline_override(self):
+        support = TestPlanUnitSupport(self.tp1)
+        self.assertEqual(
+            support.override_list,
+            [
+                ("^ns1::job1$", [("certification_status", "non-blocker")]),
+                ("^ns1::mandatory_job$", [("certification_status", "blocker")])
+            ]
+        )
diff --git a/checkbox-ng/plainbox/impl/unit/testplan.py b/checkbox-ng/plainbox/impl/unit/testplan.py
index 96b5c9ae3..307665c1e 100644
--- a/checkbox-ng/plainbox/impl/unit/testplan.py
+++ b/checkbox-ng/plainbox/impl/unit/testplan.py
@@ -843,6 +843,8 @@ def visit_IncludeStmt_node(self, node: IncludeStmt):
                     override_list.append((pattern, field_value_list))
 
             V().visit(IncludeStmtList.parse(testplan.include))
+            if testplan.mandatory_include:
+                V().visit(IncludeStmtList.parse(testplan.mandatory_include))
         for tp_unit in testplan.get_nested_part():
             override_list.extend(self._get_inline_overrides(tp_unit))
         return override_list