diff --git a/kitty/config.py b/kitty/config.py
index a9937de6b..85c2806f4 100644
--- a/kitty/config.py
+++ b/kitty/config.py
@@ -91,7 +91,7 @@ def prepare_config_file_for_editing() -> str:
     return defconf
 
 
-def finalize_keys(opts: Options, alias_map: Dict[str, ActionAlias]) -> None:
+def finalize_keys(opts: Options, alias_map: Dict[str, List[ActionAlias]]) -> None:
     defns: List[KeyDefinition] = []
     for d in opts.map:
         if d is None:  # clear_all_shortcuts
@@ -122,7 +122,7 @@ def finalize_keys(opts: Options, alias_map: Dict[str, ActionAlias]) -> None:
     opts.sequence_map = sequence_map
 
 
-def finalize_mouse_mappings(opts: Options, alias_map: Dict[str, ActionAlias]) -> None:
+def finalize_mouse_mappings(opts: Options, alias_map: Dict[str, List[ActionAlias]]) -> None:
     defns: List[MouseMapping] = []
     for d in opts.mouse_map:
         if d is None:  # clear_all_mouse_actions
diff --git a/kitty/open_actions.py b/kitty/open_actions.py
index b2837d44d..77d44275f 100644
--- a/kitty/open_actions.py
+++ b/kitty/open_actions.py
@@ -34,7 +34,7 @@ class OpenAction(NamedTuple):
 def parse(lines: Iterable[str]) -> Iterator[OpenAction]:
     match_criteria: List[MatchCriteria] = []
     actions: List[KeyAction] = []
-    alias_map: Dict[str, ActionAlias] = {}
+    alias_map: Dict[str, List[ActionAlias]] = {}
     entries = []
 
     for line in lines:
@@ -62,7 +62,7 @@ def parse(lines: Iterable[str]) -> Iterator[OpenAction]:
             match_criteria.append(MatchCriteria(cast(MatchType, key), rest))
         elif key == 'action_alias':
             for (alias_name, args) in action_alias(rest):
-                alias_map[alias_name] = ActionAlias(args[0], args=tuple(args[1:]))
+                alias_map[alias_name] = [ActionAlias(args[0], args=tuple(args[1:]))]
         else:
             log_error(f'Ignoring malformed open actions line: {line}')