diff --git a/main.py b/main.py
index f972f20..a53679f 100644
--- a/main.py
+++ b/main.py
@@ -317,6 +317,9 @@ def main():
 
     configuration['include_file_name'] = args.include_file_name
 
+    if not args.elf_file:
+        parser.print_help()
+        exit(1)
     if not os.path.exists(args.elf_file):
         eprint('File {elf_file} does not exist!'.format(elf_file=args.elf_file))
         exit(1)