diff --git a/peregrine/tracking.py b/peregrine/tracking.py
index 3c4389f..7934ea8 100644
--- a/peregrine/tracking.py
+++ b/peregrine/tracking.py
@@ -363,7 +363,6 @@ def run(self, samples):
       which can be redefined in subclasses
 
     """
-    self.start()
     self.samples = samples
 
     if self.sample_index < samples['sample_index']: