diff --git a/src/stores/widgets/StopGapWidgetDriver.ts b/src/stores/widgets/StopGapWidgetDriver.ts
index f6bffca3d29..cce1ca18a65 100644
--- a/src/stores/widgets/StopGapWidgetDriver.ts
+++ b/src/stores/widgets/StopGapWidgetDriver.ts
@@ -172,6 +172,10 @@ export class StopGapWidgetDriver extends WidgetDriver {
             this.allowedCapabilities.add(
                 WidgetEventCapability.forStateEvent(EventDirection.Receive, "org.matrix.msc3401.call.member").raw,
             );
+            // for determining auth rules specific to the room version
+            this.allowedCapabilities.add(
+                WidgetEventCapability.forStateEvent(EventDirection.Receive, EventType.RoomCreate).raw,
+            );
 
             const sendRecvRoomEvents = ["io.element.call.encryption_keys"];
             for (const eventType of sendRecvRoomEvents) {
diff --git a/test/stores/widgets/StopGapWidgetDriver-test.ts b/test/stores/widgets/StopGapWidgetDriver-test.ts
index 5ba95d901dd..b0ec31044ae 100644
--- a/test/stores/widgets/StopGapWidgetDriver-test.ts
+++ b/test/stores/widgets/StopGapWidgetDriver-test.ts
@@ -95,6 +95,7 @@ describe("StopGapWidgetDriver", () => {
             "org.matrix.msc2762.timeline:!1:example.org",
             "org.matrix.msc2762.send.event:org.matrix.rageshake_request",
             "org.matrix.msc2762.receive.event:org.matrix.rageshake_request",
+            "org.matrix.msc2762.receive.state_event:m.room.create",
             "org.matrix.msc2762.receive.state_event:m.room.member",
             "org.matrix.msc2762.receive.state_event:org.matrix.msc3401.call",
             "org.matrix.msc2762.send.state_event:org.matrix.msc3401.call.member#@alice:example.org",