diff --git a/src/test/utils/OltConfig.py b/src/test/utils/OltConfig.py
index ac5f5db..b1a3387 100644
--- a/src/test/utils/OltConfig.py
+++ b/src/test/utils/OltConfig.py
@@ -31,7 +31,7 @@
             self.olt_handle = None
             self.olt_conf = {}
             self.olt_conf['olt'] = False
-            
+
     def on_olt(self):
         return self.olt_conf['olt'] is True