diff --git a/blond/trackers/tracker.py b/blond/trackers/tracker.py
index b4b82479..d57c0b1b 100644
--- a/blond/trackers/tracker.py
+++ b/blond/trackers/tracker.py
@@ -486,6 +486,7 @@ def track(self):
                 if self.interpolation:
                     self.rf_voltage_calculation()
                     if self.totalInducedVoltage is not None:
+                        self.totalInducedVoltage.induced_voltage_sum()
                         self.total_voltage = self.rf_voltage \
                             + self.totalInducedVoltage.induced_voltage
                     else: