diff --git a/ANN_Data_Generator.py b/ANN_Data_Generator.py
index acf0d9535462909648045dc09893b0251b6bb79e..4168fe9a75a8cf1cb072b30294f454ff95aa462f 100644
--- a/ANN_Data_Generator.py
+++ b/ANN_Data_Generator.py
@@ -203,7 +203,7 @@ class TrainingDataGenerator:
             centers = [center[0] for center in centers]
 
             # Induce adjustment to capture troubled cells
-            adjustment = 0 if initial_condition.is_smooth \
+            adjustment = 0 if initial_condition.is_smooth() \
                 else centers[self._stencil_length//2]
             initial_condition.induce_adjustment(-spacing[0]/3)