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-rw-r--r--discord/ext/commands/core.py9
1 files changed, 8 insertions, 1 deletions
diff --git a/discord/ext/commands/core.py b/discord/ext/commands/core.py
index 88e65507..2d58f95a 100644
--- a/discord/ext/commands/core.py
+++ b/discord/ext/commands/core.py
@@ -564,7 +564,14 @@ class Command(_BaseCommand, Generic[CogT, P, T]):
if consume_rest_is_special:
argument = view.read_rest().strip()
else:
- argument = view.get_quoted_word()
+ try:
+ argument = view.get_quoted_word()
+ except ArgumentParsingError as exc:
+ if self._is_typing_optional(param.annotation):
+ view.index = previous
+ return None
+ else:
+ raise exc
view.previous = previous
# type-checker fails to narrow argument