diff --git a/src/public/app/widgets/floating_buttons/switch_layout_button.ts b/src/public/app/widgets/floating_buttons/switch_layout_button.ts
index a018416a2..e218c5c2e 100644
--- a/src/public/app/widgets/floating_buttons/switch_layout_button.ts
+++ b/src/public/app/widgets/floating_buttons/switch_layout_button.ts
@@ -15,6 +15,7 @@ export default class SwitchSplitOrientationButton extends NoteContextAwareWidget
         return super.isEnabled()
             && ["mermaid"].includes(this.note?.type ?? "")
             && this.note?.isContentAvailable()
+            && !this.note?.hasLabel("readOnly")
             && this.noteContext?.viewScope?.viewMode === "default";
     }