diff --git a/crates/gpui2/src/window.rs b/crates/gpui2/src/window.rs
index d43263f815749eb66d55760e935721bb1d781c88..e3b1cb4eb523cbdca8df63e96a47024f60958e50 100644
--- a/crates/gpui2/src/window.rs
+++ b/crates/gpui2/src/window.rs
@@ -46,7 +46,7 @@ const ACTIVE_DRAG_Z_INDEX: u8 = 1;
 pub struct StackingOrder {
     #[deref]
     #[deref_mut]
-    z_indices: SmallVec<[u8; 32]>,
+    z_indices: SmallVec<[u8; 64]>,
 }
 
 impl Default for StackingOrder {