diff --git a/csst/msc/pipeline.py b/csst/msc/pipeline.py
index e42bb65c343806066f6cd4407a2b0c62941597f3..940cb4bea966f370c62cce266a2cca9e9cd3e850 100644
--- a/csst/msc/pipeline.py
+++ b/csst/msc/pipeline.py
@@ -111,7 +111,6 @@ def do_one_exposure(ver_sim="C5.1", dir_l0="", dir_l1="", dir_pcref="", path_aux
     if (img_list):
         pcProc.run(img_list, wht_list, flg_list, fn_list, ccd_ids, dir_pcref, 2.0, pm_correct=True, wcs_refine=True, plot=True)
     else:
-        print(ccd_ids)
         for this_ccd_id in ccd_ids:
             print(type(this_ccd_id),this_ccd_id)
             fp_img = dm.l1_sci(ccd_id=this_ccd_id, suffix="img",ext="fits")
@@ -124,6 +123,7 @@ def do_one_exposure(ver_sim="C5.1", dir_l0="", dir_l1="", dir_pcref="", path_aux
             wht_list.append(wht)
             flg_list.append(flg)
             fn_list.append(dm.l1_sci(ccd_id=this_ccd_id, suffix="img",ext="fits"))
+        print(ccd_ids)
         pcProc.run(img_list, wht_list, flg_list, fn_list, ccd_ids, dir_pcref, 2.0, pm_correct=True, wcs_refine=True, plot=True)
 
     pcProc.cleanup()