diff --git a/core/interop/src/lib.rs b/core/interop/src/lib.rs
index 08b79c44573..2813e9d0469 100644
--- a/core/interop/src/lib.rs
+++ b/core/interop/src/lib.rs
@@ -392,6 +392,10 @@ impl<T: NativeObject> JsClass<T> {
 
 impl<T: NativeObject + Clone> JsClass<T> {
     /// Clones the inner class instance.
+    ///
+    /// # Panics
+    ///
+    /// Panics if the inner object is currently borrowed mutably.
     #[must_use]
     pub fn clone_inner(&self) -> T {
         self.inner.borrow().data().clone()