diff --git a/data/preprocessing/nutrient_load_reduction/Makefile b/data/preprocessing/nutrient_load_reduction/Makefile
index ea3eb2429..9c69efba2 100644
--- a/data/preprocessing/nutrient_load_reduction/Makefile
+++ b/data/preprocessing/nutrient_load_reduction/Makefile
@@ -5,9 +5,9 @@ checksums_dir=../../../../h3_data_importer/data_checksums
 AWS_S3_BUCKET_URL=s3://landgriffon-raw-data
 
 # Targets
-.PHONY: unzip-limiting-nutrient
+.PHONY: unzip-limiting-nutrient process-limiting-nutrients zip-shapefile upload_results write_checksum:
 
-all: unzip-limiting-nutrient
+all: unzip-limiting-nutrient process-limiting-nutrients zip-shapefile upload_results write_checksum:
 
 # First you need to download the data manually from https://figshare.com/articles/figure/DRP_NO3_TN_TP_rasters/14527638/1?file=31154728 and save it in nutrient_load_reduction/data
 unzip-limiting-nutrient:
diff --git a/data/preprocessing/nutrient_load_reduction/process_data.py b/data/preprocessing/nutrient_load_reduction/process_data.py
index 6d6479809..e77e9dd27 100644
--- a/data/preprocessing/nutrient_load_reduction/process_data.py
+++ b/data/preprocessing/nutrient_load_reduction/process_data.py
@@ -1,12 +1,12 @@
 """ Reads the limiting nutrients equal area vector file, reporjects the file to EPSG4326 and estimates the percentage of reduction needed to meet a good water quality conditions.
 
 Usage:
-process_data.py <folder>
+process_data.py <input_folder> <output_folder>
 
 Arguments:
-    <folder>     Folder containing the limiting nutrients shapefile
+    <input_folder>     Input folder containing the limiting nutrients shapefile
+    <output_folder>    Output folder to export the required percentage reduction
 """
-import os
 import logging
 from pathlib import Path
 import argparse