diff --git a/stock_inventory/models/stock_quant.py b/stock_inventory/models/stock_quant.py
index bfd04a6c4b99..81ea00132297 100644
--- a/stock_inventory/models/stock_quant.py
+++ b/stock_inventory/models/stock_quant.py
@@ -51,8 +51,8 @@ def _apply_inventory(self):
                 }
             )
             rec.to_do = False
-            if self.env.company.stock_inventory_auto_complete:
-                adjustment.action_auto_state_to_done()
+        if adjustment and self.env.company.stock_inventory_auto_complete:
+            adjustment.action_auto_state_to_done()
         return res
 
     def _get_inventory_fields_write(self):