diff --git a/python/rpc_server.py b/python/rpc_server.py
index 236065b..02dccca 100755
--- a/python/rpc_server.py
+++ b/python/rpc_server.py
@@ -12,12 +12,10 @@ channel.queue_declare(queue='rpc_queue')
 
 
 def fib(n):
-    if n == 0:
-        return 0
-    elif n == 1:
-        return 1
-    else:
+    if n > 1:
         return fib(n-1) + fib(n-2)
+    else:
+        return n
 
 def on_request(ch, method, props, body):
     n = int(body)