diff --git a/.changeset/bright-parrots-float.md b/.changeset/bright-parrots-float.md
new file mode 100644
index 000000000..8dba704f1
--- /dev/null
+++ b/.changeset/bright-parrots-float.md
@@ -0,0 +1,5 @@
+---
+'@signalwire/core': patch
+---
+
+Add `layoutName` to the RoomSession interface
diff --git a/packages/core/src/types/videoRoomSession.ts b/packages/core/src/types/videoRoomSession.ts
index e3a0fa272..8e36ac8e8 100644
--- a/packages/core/src/types/videoRoomSession.ts
+++ b/packages/core/src/types/videoRoomSession.ts
@@ -62,6 +62,8 @@ export interface VideoRoomSessionContract {
   hideVideoMuted: boolean
   /** URL to the room preview. */
   previewUrl?: string
+  /** Current layout name used in the room. */
+  layoutName: string
   /** Metadata associated to this room session. */
   meta: Record<string, unknown>