diff --git a/crates/gpui2/src/app.rs b/crates/gpui2/src/app.rs
index 9ec76a86d4e7bd0726cc1a38f98a942728c7e43d..bec18601f1865bddb58fa5151141e5b4ce9ce605 100644
--- a/crates/gpui2/src/app.rs
+++ b/crates/gpui2/src/app.rs
@@ -46,13 +46,17 @@ pub struct AppCell {
 }
 
 impl AppCell {
+    #[track_caller]
     pub fn borrow(&self) -> AppRef {
+        let thread_id = std::thread::current().id();
+        eprintln!("borrowed {thread_id:?}");
         AppRef(self.app.borrow())
     }
 
+    #[track_caller]
     pub fn borrow_mut(&self) -> AppRefMut {
-        // let thread_id = std::thread::current().id();
-        // dbg!("borrowed {thread_id:?}");
+        let thread_id = std::thread::current().id();
+        eprintln!("borrowed {thread_id:?}");
         AppRefMut(self.app.borrow_mut())
     }
 }