diff --git a/script/local.py b/script/local.py
index 3b4ab90..ce1bc72 100644
--- a/script/local.py
+++ b/script/local.py
@@ -20,7 +20,7 @@ scd_sim.set_center(1.0, 1.0)
 
 
 #Builtin functions
-def enforceMonotonic(array)
+def enforce_monotonic(array):
     """
     Make sure array has no repeated values
     """