diff --git a/src/openapi/contracts/contracts-crud.yaml b/src/openapi/contracts/contracts-crud.yaml
index 0c3e90e..963bf1e 100644
--- a/src/openapi/contracts/contracts-crud.yaml
+++ b/src/openapi/contracts/contracts-crud.yaml
@@ -624,6 +624,14 @@ paths:
       tags:
         - ContractInvoice
       parameters:
+        - in: query
+          name: contractInvoiceId
+          schema:
+            type: string
+            format: uuid
+            example: 8699d72a-cf4d-4e6b-9e9c-549d837ca51f
+          required: false
+          description: Id of the contract invoice to fetch.
         - in: query
           name: contractId
           schema: