diff --git a/jtop/gui/lib/chart.py b/jtop/gui/lib/chart.py
index 4e352560..d0504958 100644
--- a/jtop/gui/lib/chart.py
+++ b/jtop/gui/lib/chart.py
@@ -98,7 +98,6 @@ def __init__(self, jetson, name, callback, type_value=int, line="*", color_text=
     @classmethod
     def reset_color_counter():
         Chart.COLOR_COUNTER = 0
-        
 
     def __del__(self):
         # Remove from color counter