diff --git a/Options.py b/Options.py
index e106be5b..960e6c19 100644
--- a/Options.py
+++ b/Options.py
@@ -771,7 +771,7 @@ class VerifyKeys(metaclass=FreezeValidKeys):
                                     f"Did you mean '{picks[0][0]}' ({picks[0][1]}% sure)")
 
 
-class OptionDict(Option[typing.Dict[str, typing.Any]], VerifyKeys):
+class OptionDict(Option[typing.Dict[str, typing.Any]], VerifyKeys, typing.Mapping[str, typing.Any]):
     default: typing.Dict[str, typing.Any] = {}
     supports_weighting = False
 
@@ -789,8 +789,14 @@ class OptionDict(Option[typing.Dict[str, typing.Any]], VerifyKeys):
     def get_option_name(self, value):
         return ", ".join(f"{key}: {v}" for key, v in value.items())
 
-    def __contains__(self, item):
-        return item in self.value
+    def __getitem__(self, item: str) -> typing.Any:
+        return self.value.__getitem__(item)
+
+    def __iter__(self) -> typing.Iterator[str]:
+        return self.value.__iter__()
+
+    def __len__(self) -> int:
+        return self.value.__len__()
 
 
 class ItemDict(OptionDict):