diff --git a/nanobot/channels/matrix.py b/nanobot/channels/matrix.py
index 3a0fba8f1..b53ae8607 100644
--- a/nanobot/channels/matrix.py
+++ b/nanobot/channels/matrix.py
@@ -215,7 +215,7 @@ class MatrixConfig(Base):
     allow_from: list[str] = Field(default_factory=list)
     group_policy: Literal["open", "mention", "allowlist"] = "open"
     group_allow_from: list[str] = Field(default_factory=list)
-    allow_room_mentions: bool = False,
+    allow_room_mentions: bool = False
     streaming: bool = False