diff --git a/src/spikeinterface/core/segmentutils.py b/src/spikeinterface/core/segmentutils.py
index 039fa8fd60..e2ce266ca7 100644
--- a/src/spikeinterface/core/segmentutils.py
+++ b/src/spikeinterface/core/segmentutils.py
@@ -157,7 +157,7 @@ def __init__(self, parent_segments, sampling_frequency, ignore_times=True):
         self.parent_segments = parent_segments
         self.all_length = [rec_seg.get_num_samples() for rec_seg in self.parent_segments]
         self.cumsum_length = [0] + [sum(self.all_length[: i + 1]) for i in range(len(self.all_length))]
-        self.total_length = int(np.sum(self.all_length))
+        self.total_length = int(sum(self.all_length))
 
     def get_num_samples(self):
         return self.total_length
@@ -450,7 +450,7 @@ def __init__(self, parent_segments, parent_num_samples, sampling_frequency):
         self.parent_segments = parent_segments
         self.parent_num_samples = parent_num_samples
         self.cumsum_length = np.cumsum([0] + self.parent_num_samples)
-        self.total_num_samples = np.sum(self.parent_num_samples)
+        self.total_num_samples = int(sum(self.parent_num_samples))
 
     def get_num_samples(self):
         return self.total_num_samples