diff --git a/src/__main__.py b/src/__main__.py
index 697e138..218de6e 100644
--- a/src/__main__.py
+++ b/src/__main__.py
@@ -3,7 +3,10 @@ def main():
     args = parse_args()
 
     from .embed import embed_assets
-    embed_assets(args.path)
+    embed_assets(
+        args.input_path,
+        output_path=args.output_path,
+    )
 
 
 if __name__ == "__main__":
diff --git a/src/args.py b/src/args.py
index b4398b5..2b61deb 100644
--- a/src/args.py
+++ b/src/args.py
@@ -26,8 +26,13 @@ parser.add_argument(
 )
 
 parser.add_argument(
-    'path',
-    help='path to the root HTML file',
+    'input_path',
+    help='input path to the root HTML file',
+)
+
+parser.add_argument(
+    '-o', '--output-path',
+    help='output path to resulting HTML file',
 )
 
 
diff --git a/src/embed.py b/src/embed.py
index 1cad94e..4d6b7e2 100644
--- a/src/embed.py
+++ b/src/embed.py
@@ -29,7 +29,7 @@ SCRIPT_PATH = os.path.abspath(os.path.dirname(__file__))
 logger = logging.getLogger(__name__)
 
 
-def embed_assets(index_file):
+def embed_assets(index_file, output_path=None):
 
     init_files = {}
     for filename in [
@@ -46,7 +46,8 @@ def embed_assets(index_file):
     base_dir = os.path.dirname(index_file)
     base_name = os.path.basename(index_file)
     new_base_name = 'SELF_CONTAINED_' + base_name
-    result_file = os.path.join(base_dir, new_base_name)
+    if not output_path:
+        output_path = os.path.join(base_dir, new_base_name)
 
     file_tree = load_filetree(
         base_dir,
@@ -85,10 +86,10 @@ def embed_assets(index_file):
         global_context=global_context,
     )
 
-    with open(result_file, 'w') as fp:
+    with open(output_path, 'w') as fp:
         fp.write(result)
 
-    return result_file
+    return output_path
 
 
 def prepare_file(filename, before, after):