diff --git a/lib/gen_robot_utils.py b/lib/gen_robot_utils.py
index 07ff1b4..bd61a87 100644
--- a/lib/gen_robot_utils.py
+++ b/lib/gen_robot_utils.py
@@ -6,7 +6,6 @@
 """
 
 import re
-
 from robot.libraries.BuiltIn import BuiltIn
 
 
@@ -71,6 +70,5 @@
         if key in pre_var_dict:
             if value != pre_var_dict[key]:
                 global_var_name = re.sub("[@&]", "$", key)
-                BuiltIn().set_global_variable(
-                    global_var_name, pre_var_dict[key]
-                )
+                BuiltIn().set_global_variable(global_var_name,
+                                              pre_var_dict[key])