diff --git a/crates/ra_syntax/src/syntax_node.rs b/crates/ra_syntax/src/syntax_node.rs
index e566af7e87..9650b87817 100644
--- a/crates/ra_syntax/src/syntax_node.rs
+++ b/crates/ra_syntax/src/syntax_node.rs
@@ -48,11 +48,11 @@ impl SyntaxTreeBuilder {
 
     pub fn finish(self) -> Parse<SyntaxNode> {
         let (green, errors) = self.finish_raw();
-        let node = SyntaxNode::new_root(green);
         if cfg!(debug_assertions) {
+            let node = SyntaxNode::new_root(green.clone());
             crate::validation::validate_block_structure(&node);
         }
-        Parse::new(node.green().clone(), errors)
+        Parse::new(green, errors)
     }
 
     pub fn token(&mut self, kind: SyntaxKind, text: SmolStr) {