diff --git a/alkatorapi/models.py b/alkatorapi/models.py
index c3e3ce2..6c20fe1 100644
--- a/alkatorapi/models.py
+++ b/alkatorapi/models.py
@@ -72,7 +72,7 @@ class Product(models.Model):
     quantity = models.IntegerField()
 
     def __str__(self):
-        f"<Product {self.name} {self.price} Kč zbývá {self.quantity}>"
+        return f"<Product {self.name} {self.price} Kč zbývá {self.quantity}>"
 
 
 class Cart(models.Model):