diff --git a/api/v1/swagger/definitions/cashup.json b/api/v1/swagger/definitions/cashup.json
index a4c5a42644..a2681d7632 100644
--- a/api/v1/swagger/definitions/cashup.json
+++ b/api/v1/swagger/definitions/cashup.json
@@ -13,6 +13,13 @@
             "type": "integer",
             "description": "Internal identifier for the manager the cashup was performed by"
         },
+        "manager": {
+            "type": [
+                "object",
+                "null"
+            ],
+            "description": "The object representing the manager the cashup was performed by"
+        },
         "amount": {
             "type": "number",
             "description": "Account line amount"