diff --git a/samples/cellsystem_test.py b/samples/cellsystem_test.py
index 6db92cf8fb9..40f4563b4af 100644
--- a/samples/cellsystem_test.py
+++ b/samples/cellsystem_test.py
@@ -75,4 +75,5 @@ def profile():
     profile()
 
 print("Using automatic tuning...")
-print(cs.tune_skin())
+skin=cs.tune_skin(min_skin=0.5, max_skin=50., tol=0.5, int_steps=100)
+profile()