diff --git a/crates/syntax/src/syntax_node.rs b/crates/syntax/src/syntax_node.rs
index bd7ea0240b..8647c1dc75 100644
--- a/crates/syntax/src/syntax_node.rs
+++ b/crates/syntax/src/syntax_node.rs
@@ -47,6 +47,8 @@ impl SyntaxTreeBuilder {
 
     pub fn finish(self) -> Parse<SyntaxNode> {
         let (green, errors) = self.finish_raw();
+        // NOTE Why you're disabling assertions.
+        // ref: https://github.com/rust-analyzer/rust-analyzer/pull/10357
         if cfg!(debug_assertions) && false {
             let node = SyntaxNode::new_root(green.clone());
             crate::validation::validate_block_structure(&node);