diff --git a/script/KR84_test_plot.py b/script/KR84_test_plot.py
index a4e3373..00fa509 100644
--- a/script/KR84_test_plot.py
+++ b/script/KR84_test_plot.py
@@ -1,6 +1,6 @@
 #test KR84, 19.10.2016
 
-[py]=plot([None,],["y","y2"], title="OUT")
+[py]=plot([None,None],["y","y2"], title="OUT")
 
 #Y error plot
 py.setStyle(py.Style.ErrorY)