diff --git a/app/controllers/api/functions.php b/app/controllers/api/functions.php
index f9bbcae801..d3913d180d 100644
--- a/app/controllers/api/functions.php
+++ b/app/controllers/api/functions.php
@@ -456,7 +456,7 @@ App::get('/v1/functions/:functionId/usage')
     ->label('sdk.method', 'getFunctionUsage')
     ->label('sdk.response.code', Response::STATUS_CODE_OK)
     ->label('sdk.response.type', Response::CONTENT_TYPE_JSON)
-    ->label('sdk.response.model', Response::MODEL_USAGE_FUNCTIONS)
+    ->label('sdk.response.model', Response::MODEL_USAGE_FUNCTION)
     ->param('functionId', '', new UID(), 'Function ID.')
     ->param('range', '30d', new WhiteList(['24h', '30d', '90d']), 'Date range.', true)
     ->inject('response')