diff --git a/edmond/plugins/unknown_command.py b/edmond/plugins/unknown_command.py
index 44bc5b9..5bc3c7d 100644
--- a/edmond/plugins/unknown_command.py
+++ b/edmond/plugins/unknown_command.py
@@ -50,7 +50,7 @@ class UnknownCommandPlugin(Plugin):
             self.signal_failure(target)
             return
 
-        if response["@success"] != "true":
+        if not response["@success"]:
             self.signal_failure(target)
             return