diff --git a/pipelines/LSSTCam/Isr-cal.yaml b/pipelines/LSSTCam/Isr-cal.yaml
index 3316e480..755433da 100644
--- a/pipelines/LSSTCam/Isr-cal.yaml
+++ b/pipelines/LSSTCam/Isr-cal.yaml
@@ -10,6 +10,7 @@ tasks:
   isr:
     class: lsst.ip.isr.IsrTaskLSST
     config:
+      ampNoiseThreshold: .nan
       defaultSaturationSource: CAMERAMODEL
       doApplyGains: false
       doBias: false