diff --git a/gwinc/ifo/noises.py b/gwinc/ifo/noises.py
index bd8d37c88303f226309653254a151d17d1342cbf..9d748793e35db381f2d3b581b94fd8794e1e513b 100644
--- a/gwinc/ifo/noises.py
+++ b/gwinc/ifo/noises.py
@@ -148,8 +148,7 @@ def precomp_suspension(f, ifo):
 def precomp_quantum(f, ifo):
     pc = Struct()
     mirror_mass = mirror_struct(ifo, 'ETM').MirrorMass
-    pbs, parm, _, _, _ = ifo_power(ifo)
-    power = Struct(parm=parm, pbs=pbs)
+    power = ifo_power(ifo)
     noise_dict = noise.quantum.shotrad(f, ifo, mirror_mass, power)
     pc.ASvac = noise_dict['ASvac']
     pc.SEC = noise_dict['SEC']