diff --git a/src/app.rs b/src/app.rs
index 1b43be9..d735e84 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -116,7 +116,7 @@ impl TemplateApp {
                 });
 
                 ui.separator();
-                self.state.backend_panel.ui(ui, frame, &mut self.platform);
+                self.state.backend_panel.ui(ui, frame, &self.platform);
             });
     }
 }