diff --git a/moringa.py b/moringa.py
index e20905f195213df9eb009561e9ce999b0b3c653c..1eaefba171efc57561e1d3fa5c07fbe6cdc39fee 100755
--- a/moringa.py
+++ b/moringa.py
@@ -52,7 +52,7 @@ def main(args):
                               formatter_class=argparse.ArgumentDefaultsHelpFormatter)
     prepr.add_argument("in_folder", type=str, help="Path to the folder containing (de-zipped) S2 images.")
     prepr.add_argument("out_folder", type=str, help="Path to the folder in which preprocessed stacks will be stored.")
-    prepr.add_argument("--output_dates_file", type=str, default=None, help="Path to the text file containing output dates for  temporal interpolation.")
+    prepr.add_argument("--output_dates_file", type=str, default=None, help="Path to the text file containing output dates for temporal interpolation.")
     prepr.add_argument("--roi", type=str, default=None, help="Path to the ROI vector file.")
     prepr.add_argument("--coregister_to", type=str, default=None, help="Path to a reference image to which the stacks must be coregistered.")
     prepr.add_argument("--coregister_to_band", type=int, nargs='?', default=1, help="Band of reference image used for co-registration.")