diff --git a/src/main-filter.py b/src/main-filter.py
index b1ab342..1c043b8 100644
--- a/src/main-filter.py
+++ b/src/main-filter.py
@@ -121,6 +121,9 @@ def main():
 	# Print the matches in sshwot format
 	write_file.write(args.outfile, matches)
 
+	# If we found nothing, return code 2
+	sys.exit(2)
+
 if __name__ == '__main__':
 	try:
 		main()