diff --git a/src/spikeinterface/sortingcomponents/peak_detection.py b/src/spikeinterface/sortingcomponents/peak_detection.py
index d2d1afaafb..134481289e 100644
--- a/src/spikeinterface/sortingcomponents/peak_detection.py
+++ b/src/spikeinterface/sortingcomponents/peak_detection.py
@@ -736,6 +736,7 @@ def compute(self, traces, start_frame, end_frame, segment_index, max_margin):
 
     def get_convolved_traces(self, traces):
         from scipy.signal import oaconvolve
+
         tmp = oaconvolve(self.prototype[None, :], traces.T, axes=1, mode="valid")
         scalar_products = self.weights.dot(tmp)
         return scalar_products