diff --git a/README.rst b/README.rst
index 37fc287..5f45cf1 100644
--- a/README.rst
+++ b/README.rst
@@ -17,7 +17,7 @@ Manage the aggregation of git branches from different remotes to build a consoli
 Configuration file
 ==================
 
-Create a ``repos.yaml`` file:
+Create a ``repos.yaml`` or ``repos.yml`` file:
 
 .. code-block:: yaml
 
diff --git a/git_aggregator/main.py b/git_aggregator/main.py
index 845030d..537db1a 100644
--- a/git_aggregator/main.py
+++ b/git_aggregator/main.py
@@ -64,7 +64,7 @@ def get_parser():
         nargs='?',
         help='Pull the latest repositories from config(s)'
     ).completer = argcomplete.completers.FilesCompleter(
-        allowednames=('.yaml', '.json'), directories=False
+        allowednames=('.yaml', '.yml', '.json'), directories=False
     )
 
     main_parser.add_argument(