diff --git a/bilby/gw/detector/detectors/ET.interferometer b/bilby/gw/detector/detectors/ET.interferometer
index 27bda03126acd4eb8b6c7faec5fee3702bcf2d61..e893840955311414be9ff38f8cabefcaa40204f6 100644
--- a/bilby/gw/detector/detectors/ET.interferometer
+++ b/bilby/gw/detector/detectors/ET.interferometer
@@ -2,7 +2,7 @@
 # LIGO-T980044-10
 # https://dcc.ligo.org/LIGO-P1600143/public
 name = 'ET'
-power_spectral_density = PowerSpectralDensity(psd_file='ET_B_psd.txt')
+power_spectral_density = PowerSpectralDensity(psd_file='ET_D_psd.txt')
 length = 10
 minimum_frequency = 10
 maximum_frequency = 2048