diff --git a/bdaq53/scans/tune_tot.py b/bdaq53/scans/tune_tot.py
index 83723be555113e982a9750fb5fc9bb811db8941b..6c10a2d0aadbff1cdee800779c929cf68de88e03 100755
--- a/bdaq53/scans/tune_tot.py
+++ b/bdaq53/scans/tune_tot.py
@@ -102,7 +102,7 @@ class TotTuning(ScanBase):
 
         self.data.start_data_taking = True
         self.data.n_injections = n_injections
-        n_iterations = -1
+        n_iterations = 0
 
         feedback_current, actual_tot_mean, scan_par_values = {}, {}, {}