diff --git a/modules/icing/pirep_goes.py b/modules/icing/pirep_goes.py
index 3803fb4a18de8fda241aeb85f11720c37942115a..c3925c55d3405ff6c8e664155e756402b675aa96 100644
--- a/modules/icing/pirep_goes.py
+++ b/modules/icing/pirep_goes.py
@@ -552,6 +552,8 @@ def run_daynight(filename, filename_l1b, day_night='ANY'):
         elif day_night == 'DAY':
             if is_day(solzen[i,]):
                 idxs.append(i)
+        else:
+            idxs.append(i)
 
     keep_idxs = np.array(idxs)