diff --git a/module_auto_update/models/module.py b/module_auto_update/models/module.py
index 034adcb96..66d1c0c75 100644
--- a/module_auto_update/models/module.py
+++ b/module_auto_update/models/module.py
@@ -32,6 +32,8 @@ class IncompleteUpgradeError(exceptions.UserError):
 
 def ensure_module_state(env, modules, state):
     # read module states, bypassing any Odoo cache
+    if not modules:
+        return
     env.cr.execute(
         "SELECT name FROM ir_module_module "
         "WHERE id IN %s AND state != %s",
diff --git a/module_auto_update/tests/test_module.py b/module_auto_update/tests/test_module.py
index b4f0746c3..1ceb2069c 100644
--- a/module_auto_update/tests/test_module.py
+++ b/module_auto_update/tests/test_module.py
@@ -180,6 +180,42 @@ class TestModuleAfterInstall(TransactionCase):
             finally:
                 Bmu._revert_method('upgrade_module')
 
+    def test_incomplete_upgrade_no_checkusm(self):
+        Imm = self.env['ir.module.module']
+        Bmu = self.env['base.module.upgrade']
+
+        installed_modules = Imm.search(
+            [('state', '=', 'installed')])
+        # change the checksum of 'base'
+        Imm._save_installed_checksums()
+        saved_checksums = Imm._get_saved_checksums()
+
+        Imm._save_checksums(saved_checksums)
+        self.base_module.write({'state': 'to upgrade'})
+
+        def upgrade_module_mock(self_model):
+            upgrade_module_mock.call_count += 1
+            # since we are upgrading base, all installed module
+            # must have been marked to upgrade at this stage
+            self.assertEqual(self.base_module.state, 'to upgrade')
+            self.assertEqual(self.own_module.state, 'installed')
+            installed_modules.write({'state': 'installed'})
+
+        upgrade_module_mock.call_count = 0
+
+        # upgrade_changed_checksum commits, so mock that
+        with mock.patch.object(self.env.cr, 'commit'):
+
+            # we simulate an install by setting module states
+            Bmu._patch_method('upgrade_module',
+                              upgrade_module_mock)
+            # got just other modules to_upgrade and no checksum ones
+            try:
+                Imm.upgrade_changed_checksum()
+                self.assertEqual(upgrade_module_mock.call_count, 1)
+            finally:
+                Bmu._revert_method('upgrade_module')
+
     def test_nothing_to_upgrade(self):
         Imm = self.env['ir.module.module']
         Bmu = self.env['base.module.upgrade']