diff --git a/api/handler.py b/api/handler.py
index ff946f6..8102e97 100644
--- a/api/handler.py
+++ b/api/handler.py
@@ -62,7 +62,7 @@ async def handle(incoming_request: fastapi.Request):
     user = await users.user_by_api_key(received_key.split('Bearer ')[1].strip())
 
     if not user or not user['status']['active']:
-        return await errors.error(418, 'Invalid or inactive NovaAI API key!', 'Create a new NovaOSS API key or reactivate your account.')
+        return await errors.error(401, 'Invalid or inactive NovaAI API key!', 'Try /resetkey or /credentials.')
 
     ban_reason = user['status']['ban_reason']
     if ban_reason:
diff --git a/api/responder.py b/api/responder.py
index 318af99..fc93381 100644
--- a/api/responder.py
+++ b/api/responder.py
@@ -241,6 +241,7 @@ async def respond(
         return
 
     if (not is_stream) and server_json_response:
+        server_json_response['system_fingerprint'] = f'fp_' + os.urandom(5).hex()
         yield json.dumps(server_json_response)
 
     if incoming_request: # not called by other code, but actually a request