diff --git a/crates/egui/src/context.rs b/crates/egui/src/context.rs
index e78e4ed61..46313eaef 100644
--- a/crates/egui/src/context.rs
+++ b/crates/egui/src/context.rs
@@ -1585,8 +1585,8 @@ impl Context {
         });
 
         if is_last {
-            // Context Cleanup
             self.write(|ctx| {
+                // Remove dead viewports:
                 ctx.input.retain(|id, _| all_viewport_ids.contains(id));
                 ctx.layer_rects_prev_frame
                     .retain(|id, _| all_viewport_ids.contains(id));