diff --git a/libervia/cli/output_std.py b/libervia/cli/output_std.py
index c3e2e2f8..6e5688ce 100644
--- a/libervia/cli/output_std.py
+++ b/libervia/cli/output_std.py
@@ -112,7 +112,7 @@ class Simple(object):
             )
 
 
-class Json(object):
+class Json:
     """outputs in json format"""
 
     def __init__(self, host):
@@ -132,7 +132,7 @@ class Json(object):
         host.register_output(C.OUTPUT_COMPLEX, C.OUTPUT_NAME_JSON_RAW, self.dump)
 
     def dump(self, data):
-        self.host.disp(json.dumps(data, default=str))
+        self.host.console.print_json(data=data, indent=None, highlight=False, default=str)
 
     def dump_pretty(self, data):
-        self.host.disp(json.dumps(data, indent=4, default=str))
+        self.host.console.print_json(data=data, indent=4, default=str)