diff --git a/docs/source/usage.rst b/docs/source/usage.rst
index e1f1fa1..98143a6 100644
--- a/docs/source/usage.rst
+++ b/docs/source/usage.rst
@@ -194,12 +194,25 @@ The attribute type *json* allows to store them in JSON format, which internally
 	"it": "Scopa Verde"
     })
 
+    prod2 = Product.objects.create(sku='PRD00002', eav__name_intl={
+	"es": "Escoba Roja",
+	"en": "Red Broom"
+    })
+
+    prod3 = Product.objects.create(sku='PRD00003', eav__name_intl={
+	"es": "Escoba Azul",
+	"it": "Scopa Blu"
+    })
+
     prod.eav.name_intl
     {'es': 'Escoba Verde', 'en': 'Green Broom', 'it': 'Scopa Verde'}
 
     type(prod.eav.name_intl)
     dict
 
+    Product.objects.filter(eav__name_intl__has_key="it")
+    <EavQuerySet [<Product: PRD00001>, <Product: PRD00003>]>
+
 
 Finally, attribute type *object* allows to relate Django model instances
 via generic foreign keys: