1 files changed, 7 insertions, 1 deletions

diff --git a/crates/ra_assists/src/flip_comma.rs b/crates/ra_assists/src/flip_comma.rs
index a49820c29..33da58f17 100644
--- a/crates/ra_assists/src/flip_comma.rs
+++ b/crates/ra_assists/src/flip_comma.rs
@@ -11,6 +11,7 @@ pub(crate) fn flip_comma(ctx: AssistCtx<impl HirDatabase>) -> Option<Assist> {
     let prev = non_trivia_sibling(comma, Direction::Prev)?;
     let next = non_trivia_sibling(comma, Direction::Next)?;
     ctx.build("flip comma", |edit| {
+        edit.target(comma.range());
         edit.replace(prev.range(), next.text());
         edit.replace(next.range(), prev.text());
     })
@@ -20,7 +21,7 @@ pub(crate) fn flip_comma(ctx: AssistCtx<impl HirDatabase>) -> Option<Assist> {
 mod tests {
     use super::*;
 
-    use crate::helpers::check_assist;
+    use crate::helpers::{check_assist, check_assist_target};
 
     #[test]
     fn flip_comma_works_for_function_parameters() {
@@ -30,4 +31,9 @@ mod tests {
             "fn foo(y: Result<(), ()>,<|> x: i32) {}",
         )
     }
+
+    #[test]
+    fn flip_comma_target() {
+        check_assist_target(flip_comma, "fn foo(x: i32,<|> y: Result<(), ()>) {}", ",")
+    }
 }