diff --git a/desktop/src/features/channels/ui/ChannelPane.tsx b/desktop/src/features/channels/ui/ChannelPane.tsx
index 9f23ea74b..016f5b04f 100644
--- a/desktop/src/features/channels/ui/ChannelPane.tsx
+++ b/desktop/src/features/channels/ui/ChannelPane.tsx
@@ -795,11 +795,7 @@ export const ChannelPane = React.memo(function ChannelPane({
                 hasComposerOverlay={hasMainComposerOverlay}
                 hasOlderMessages={hasOlderMessages}
                 isFetchingOlder={isFetchingOlder}
-                layoutShiftKey={
-                  useSplitAuxiliaryPane
-                    ? (openThreadHeadId ?? "closed")
-                    : "overlay"
-                }
+                layoutShiftKey={useSplitAuxiliaryPane ? "split" : "overlay"}
                 isFollowingThreadById={isFollowingThreadById}
                 isMessageUnreadById={isMessageUnreadById}
                 personaLookup={personaLookup}