diff --git a/setup_env.sh b/setup_env.sh
index eafb185..dd693a9 100755
--- a/setup_env.sh
+++ b/setup_env.sh
@@ -4,15 +4,16 @@ set -e # Exit immediately if any command fails
 # 1. Set default values
 ENV_NAME="satprocessing"
 YML_PATH="./satprocessing.yml"
+OVERWRITE=false
 
 # 2. Parse command-line flags (-n for name, -f for file, -h for help)
-while getopts "n:f:h" opt; do
+while getopts "n:f:oh" opt; do
   case $opt in
     n) ENV_NAME="$OPTARG" ;;
     f) YML_PATH="$OPTARG" ;;
     o) OVERWRITE=true ;;
     h) 
-      echo "Usage: $0 [-n env_name] [-f yml_path]"
+      echo "Usage: $0 [-n env_name] [-f yml_path] [-o]"
       echo "  -n  Name of the Conda environment (default: satprocessing)"
       echo "  -f  Path to the environment YAML file (default: ./satprocessing.yml)"
       echo "  -o  Overwrite: completely remove the existing environment and start fresh"