diff --git a/REST/app.py b/REST/app.py
index b606c2e..0e42a29 100644
--- a/REST/app.py
+++ b/REST/app.py
@@ -26,7 +26,7 @@ def initialize_generator():
         initialized = True
         return create_response(200, 'Successful operation; random number generator is ready and random numbers can be requested')
     if result == 400:
-        return create_response(500, 'Tests failed, try again')
+        return create_response(543, 'Tests failed, try again')
     if result is False:
         return create_response(500, 'Unable to generate random numbers. Restart/Reset System')
     else: