diff --git a/acmc/main.py b/acmc/main.py
index ec29b5d1ffe3e2bc8da733a7ce16f3328a2cf598..e2765e8abeab17375e75ebd2ae3ca5dfc0a939d7 100644
--- a/acmc/main.py
+++ b/acmc/main.py
@@ -66,6 +66,7 @@ def phen_diff(args):
     phen.diff(args.phen_dir, args.phen_dir_old)
 
 
+
 def main():
     parser = argparse.ArgumentParser(description="ACMC command-line tool")
     parser.add_argument("--debug", action="store_true", help="Enable debug mode")