diff --git a/moringa.py b/moringa.py
index c372a65449a98a8c60ee7630d4b5c64d593636f7..e57911a86b5cad493f4cb11fcac7b8e42ce041a7 100755
--- a/moringa.py
+++ b/moringa.py
@@ -157,7 +157,7 @@ def main(args):
                           arg.clip, arg.align_to, arg.align_to_band, arg.align_using_band)
 
     if arg.cmd == "preprocess_s1":
-        preprocess_s1(arg.fld, arg.roi, arg.out_fld, arg.dem_fld, arg.geoid, arg.direction, arg.satellite,
+        preprocess_s1(arg.in_folder, arg.roi, arg.out_folder, arg.dem_fld, arg.geoid, arg.direction, arg.satellite,
                       arg.skip_despeckle, arg.provider)
 
     return 0