diff --git a/daprdocs/content/en/reference/components-reference/supported-state-stores/setup-dynamodb.md b/daprdocs/content/en/reference/components-reference/supported-state-stores/setup-dynamodb.md
index 96fdcb07e..3379004dc 100644
--- a/daprdocs/content/en/reference/components-reference/supported-state-stores/setup-dynamodb.md
+++ b/daprdocs/content/en/reference/components-reference/supported-state-stores/setup-dynamodb.md
@@ -39,6 +39,10 @@ spec:
 The above example uses secrets as plain strings. It is recommended to use a secret store for the secrets as described [here]({{< ref component-secrets.md >}}).
 {{% /alert %}}
 
+## Primary Key
+
+In order to use DynamoDB as a Dapr state store, the table must have a primary key named `key`.
+
 ## Spec metadata fields
 
 | Field              | Required | Details | Example |