diff --git a/api/swagger.yaml b/api/swagger.yaml
index d159ea9d85..13699db2c8 100644
--- a/api/swagger.yaml
+++ b/api/swagger.yaml
@@ -6133,6 +6133,10 @@ paths:
             example:
               Id: "22be93d5babb089c5aab8dbc369042fad48ff791584ca2da2100db837a1c7c30"
               Warning: ""
+        403:
+          description: "operation not supported for pre-defined networks"
+          schema:
+            $ref: "#/definitions/ErrorResponse"
         404:
           description: "plugin not found"
           schema:
diff --git a/docs/api/v1.24.md b/docs/api/v1.24.md
index e99a7c25f8..85c7e83acc 100644
--- a/docs/api/v1.24.md
+++ b/docs/api/v1.24.md
@@ -3320,6 +3320,7 @@ Content-Type: application/json
 **Status codes**:
 
 - **201** - no error
+- **403** - operation not supported for pre-defined networks
 - **404** - plugin not found
 - **500** - server error