diff --git a/starlark_lsp/src/definition.rs b/starlark_lsp/src/definition.rs
index 3117389da..a65f80462 100644
--- a/starlark_lsp/src/definition.rs
+++ b/starlark_lsp/src/definition.rs
@@ -658,7 +658,7 @@ pub(crate) mod helpers {
 
             let mut fixture_idx = 0;
             for matches in re.captures_iter(fixture) {
-                let full_tag = matches.get(0).unwrap();
+                let full_tag = matches.get_match();
                 let is_end_tag = matches.get(1).is_some();
                 let identifier = matches.get(2).unwrap().as_str().to_owned();
 
diff --git a/starlark_lsp/src/test.rs b/starlark_lsp/src/test.rs
index a76f5166c..a4931a574 100644
--- a/starlark_lsp/src/test.rs
+++ b/starlark_lsp/src/test.rs
@@ -235,10 +235,7 @@ impl LspContext for TestServerContext {
                 let start_pos = cap.get(1).unwrap().as_str().parse().unwrap();
                 let end_pos = cap.get(2).unwrap().as_str().parse().unwrap();
                 let span = Span::new(Pos::new(start_pos), Pos::new(end_pos));
-                (
-                    literal[0..cap.get(0).unwrap().start()].to_owned(),
-                    Some(span),
-                )
+                (literal[0..cap.get_match().start()].to_owned(), Some(span))
             }
             None => (literal.to_owned(), None),
         };