diff --git a/modules/util/abi_surfrad.py b/modules/util/abi_surfrad.py
index 22e688a8c66a57ac0164652e511a903691dff08f..908ca63b30a07958d7aca77ff3eecb7fa0ac8d33 100644
--- a/modules/util/abi_surfrad.py
+++ b/modules/util/abi_surfrad.py
@@ -85,8 +85,7 @@ def run_all(directory, out_directory, day_night='ANY', pattern='clavrx_*.nc', st
     total_num_not_missing = 0
 
     for idx, data_f in enumerate(valid_files):
-        # if idx % 4 == 0:  # if we want to skip some files
-        if True:
+        if idx % 4 == 0:  # if we want to skip some files
             try:
                 h5f = h5py.File(data_f, 'r')
             except: