diff --git a/scripts/xy_grid.py b/scripts/xy_grid.py
index f87c6c1f1..f1f54d9c9 100644
--- a/scripts/xy_grid.py
+++ b/scripts/xy_grid.py
@@ -218,7 +218,7 @@ class Script(scripts.Script):
         ys = process_axis(y_opt, y_values)
 
         def fix_axis_seeds(axis_opt, axis_list):
-            if axis_opt.label == 'Seed' or 'Var. seed':
+            if axis_opt.label in ["Seed","Var. seed"]:
                 return [int(random.randrange(4294967294)) if val is None or val == '' or val == -1 else val for val in axis_list]
             else:
                 return axis_list