diff --git a/plugins/callback/opentelemetry.py b/plugins/callback/opentelemetry.py
index d5ba1a2c495..c1856d9c012 100644
--- a/plugins/callback/opentelemetry.py
+++ b/plugins/callback/opentelemetry.py
@@ -245,7 +245,7 @@ def update_span_data(self, task_data, host_data, span):
         name = '[%s] %s: %s' % (host_data.name, task_data.play, task_data.name)
 
         message = 'success'
-        res = []
+        res = {}
         rc = 0
         status = Status(status_code=StatusCode.OK)
         if host_data.status != 'included':