diff --git a/purchase.py b/purchase.py
index b91fd39..8c7500b 100644
--- a/purchase.py
+++ b/purchase.py
@@ -2,5 +2,5 @@ from trytond.model import ModelView, ModelSQL
 
 
 class PurchaseLine(ModelSQL, ModelView, metaclass=PoolMeta):
-    'PurhcaseLine'
+    'PurchaseLine'
     __name__ = 'purchase.line'