diff --git a/Detector/DetCRD/scripts/CRD_o1_v01-SimRec.py b/Detector/DetCRD/scripts/CRD_o1_v01-SimRec.py
index 6c265a31583d0cb767573f1272f4730c936a41da..cc2e5095c8ab1700fcebb7aea17bba2b5e1f6645 100644
--- a/Detector/DetCRD/scripts/CRD_o1_v01-SimRec.py
+++ b/Detector/DetCRD/scripts/CRD_o1_v01-SimRec.py
@@ -42,8 +42,8 @@ gun = GtGunTool("GtGunTool")
 gun.Particles = ["mu-"]
 gun.EnergyMins = [100.] # GeV
 gun.EnergyMaxs = [100.] # GeV
-gun.ThetaMins  = [80]    # deg
-gun.ThetaMaxs  = [85]  # deg
+gun.ThetaMins  = [0]    # deg
+gun.ThetaMaxs  = [180]  # deg
 gun.PhiMins    = [0]    # deg
 gun.PhiMaxs    = [360]  # deg
 # stdheprdr = StdHepRdr("StdHepRdr")