diff --git a/user_libs/optimisations/taguchi.py b/user_libs/optimisations/taguchi.py
index 30018ddd..0899c743 100644
--- a/user_libs/optimisations/taguchi.py
+++ b/user_libs/optimisations/taguchi.py
@@ -139,7 +139,7 @@ def calculate_ranges_experiments(optparams, optparamsinit, levels, levelsopt, le
 
         # Upper levels set using central level and level differences values; and check they are not outwith initial ranges
         if levels[1, p] + levelsdiff[p] > optparamsinit[p][1][1]:
-            levels[2, p] = optparamslist[p][1][1]
+            levels[2, p] = optparamsinit[p][1][1]
         else:
             levels[2, p] = levels[1, p] + levelsdiff[p]