diff --git a/crates/ra_mbe/src/subtree_source.rs b/crates/ra_mbe/src/subtree_source.rs
index c9cbf4a204b..972af4a7c59 100644
--- a/crates/ra_mbe/src/subtree_source.rs
+++ b/crates/ra_mbe/src/subtree_source.rs
@@ -43,7 +43,7 @@ impl<'a> SubtreeWalk<'a> {
                 cached.push(None);
                 continue;
             }
-            
+
             match cursor.token_tree() {
                 Some(tt::TokenTree::Leaf(leaf)) => {
                     cached.push(Some(convert_leaf(&leaf)));