2 files changed, 7 insertions, 6 deletions

diff --git a/crates/ide/src/diagnostics.rs b/crates/ide/src/diagnostics.rs
index 273d8cfbb..d5fba6740 100644
--- a/crates/ide/src/diagnostics.rs
+++ b/crates/ide/src/diagnostics.rs
@@ -579,7 +579,7 @@ fn test_fn() {
 struct TestStruct { one: i32, two: i64 }
 
 fn test_fn() {
-    let s = TestStruct { one: (), two: ()};
+    let s = TestStruct { one: (), two: () };
 }
 "#,
         );
@@ -599,7 +599,7 @@ impl TestStruct {
 struct TestStruct { one: i32 }
 
 impl TestStruct {
-    fn test_fn() { let s = Self { one: ()}; }
+    fn test_fn() { let s = Self { one: () }; }
 }
 "#,
         );
@@ -792,7 +792,7 @@ fn main() {
 pub struct Foo { pub a: i32, pub b: i32 }
 "#,
             r#"
-fn some(, b: ()) {}
+fn some(, b: () ) {}
 fn items() {}
 fn here() {}
 
diff --git a/crates/ide/src/diagnostics/fixes.rs b/crates/ide/src/diagnostics/fixes.rs
index 15821500f..695b59e27 100644
--- a/crates/ide/src/diagnostics/fixes.rs
+++ b/crates/ide/src/diagnostics/fixes.rs
@@ -100,11 +100,12 @@ impl DiagnosticWithFix for MissingFields {
         let root = sema.db.parse_or_expand(self.file)?;
         let field_list_parent = self.field_list_parent.to_node(&root);
         let old_field_list = field_list_parent.record_expr_field_list()?;
-        let mut new_field_list = old_field_list.clone();
+        let new_field_list = old_field_list.clone_for_update();
         for f in self.missed_fields.iter() {
             let field =
-                make::record_expr_field(make::name_ref(&f.to_string()), Some(make::expr_unit()));
-            new_field_list = new_field_list.append_field(&field);
+                make::record_expr_field(make::name_ref(&f.to_string()), Some(make::expr_unit()))
+                    .clone_for_update();
+            new_field_list.add_field(field);
         }
 
         let edit = {