diff --git a/src/yellow/syntax.rs b/src/yellow/syntax.rs
index ae3302ed90..64af082365 100644
--- a/src/yellow/syntax.rs
+++ b/src/yellow/syntax.rs
@@ -18,7 +18,8 @@ impl<'a> TreeRoot for &'a SyntaxRoot {}
 #[derive(Clone, Copy)]
 pub struct SyntaxNode<ROOT: TreeRoot = Arc<SyntaxRoot>> {
     pub(crate) root: ROOT,
-    // guaranteed to be alive bc SyntaxRoot holds a strong ref
+    // Guaranteed to not dangle, because `root` holds a
+    // strong reference to red's ancestor
     red: ptr::NonNull<RedNode>,
 }