diff --git a/InvenTree/stock/models.py b/InvenTree/stock/models.py
index e74c4c30d5..2f61c068cd 100644
--- a/InvenTree/stock/models.py
+++ b/InvenTree/stock/models.py
@@ -84,7 +84,7 @@ class StockItem(models.Model):
         - The 'part' and 'supplier_part.part' fields cannot point to the same Part object
         - The 'part' does not belong to itself
         - Quantity must be 1 if the StockItem has a serial number
-        """ 
+        """
 
         # The 'supplier_part' field must point to the same part!
         try: