diff --git a/app/executor.php b/app/executor.php
index 1fa32599ab..4ef174ab9c 100644
--- a/app/executor.php
+++ b/app/executor.php
@@ -396,7 +396,7 @@ App::post('/v1/execution')
     ->desc('Create an execution')
     ->param('runtimeId', '', new Text(64), 'The runtimeID to execute')
     ->param('vars', [], new Assoc(), 'Environment variables required for the build')
-    ->param('data', '{}', new Text(8192), 'Data to be forwarded to the function, this is user specified.', true)
+    ->param('data', '', new Text(8192), 'Data to be forwarded to the function, this is user specified.', true)
     ->param('timeout', 15, new Range(1, (int) App::getEnv('_APP_FUNCTIONS_TIMEOUT', 900)), 'Function maximum execution time in seconds.')
     ->inject('activeRuntimes')
     ->inject('response')