diff --git a/tupak/detector.py b/tupak/detector.py
index 1b90f3d06a5cb907c685e81bbf76a4965bb5bcf4..2fc7e53918f44b965e7474d97e1b27e04a78cd1c 100644
--- a/tupak/detector.py
+++ b/tupak/detector.py
@@ -305,7 +305,8 @@ class Interferometer(object):
 
     @property
     def power_spectral_density_array(self):
-        return self.power_spectral_density.power_spectral_density_interpolated(self.frequency_array)
+        return self.power_spectral_density.power_spectral_density_interpolated(self.frequency_array)\
+               * self.frequency_mask
 
     def set_data(self, sampling_frequency, duration, epoch=0,
                  from_power_spectral_density=None,