diff --git a/fcl/g4/modifiers/enable_spacecharge_icarus.fcl b/fcl/g4/modifiers/enable_spacecharge_icarus.fcl
index 75d77ecfc..6314dabd7 100644
--- a/fcl/g4/modifiers/enable_spacecharge_icarus.fcl
+++ b/fcl/g4/modifiers/enable_spacecharge_icarus.fcl
@@ -4,7 +4,7 @@
 
 services.SpaceChargeService.EnableSimSpatialSCE: true
 services.SpaceChargeService.EnableSimEfieldSCE: true
-services.SpaceChargeService.is2DdriftSimHack: false
+services.SpaceChargeService.is2DdriftSimHack: true
 
 services.SpaceChargeService.RepresentationType: "Voxelized_TH3"