diff --git a/libervia/cli/output_std.py b/libervia/cli/output_std.py
index d580657e..a663f7bf 100644
--- a/libervia/cli/output_std.py
+++ b/libervia/cli/output_std.py
@@ -142,7 +142,13 @@ class Json:
         )
 
     def dump(self, data):
-        self.host.console.print_json(json=data, indent=None, highlight=False, default=str)
+        if isinstance(data, str):
+            self.host.console.print_json(json=data, indent=None, highlight=False, default=str)
+        else:
+            self.host.console.print_json(data=data, indent=None, highlight=False, default=str)
 
     def dump_pretty(self, data):
-        self.host.console.print_json(json=data, indent=4, default=str)
+        if isinstance(data, str):
+            self.host.console.print_json(json=data, indent=4, default=str)
+        else:
+            self.host.console.print_json(data=data, indent=4, default=str)