1 files changed, 2 insertions, 0 deletions

diff --git a/crates/libsyntax2/src/grammar/mod.rs b/crates/libsyntax2/src/grammar/mod.rs
index 496d28349..1acecac41 100644
--- a/crates/libsyntax2/src/grammar/mod.rs
+++ b/crates/libsyntax2/src/grammar/mod.rs
@@ -119,8 +119,10 @@ fn abi(p: &mut Parser) {
 
 fn opt_fn_ret_type(p: &mut Parser) -> bool {
     if p.at(THIN_ARROW) {
+        let m = p.start();
         p.bump();
         types::type_(p);
+        m.complete(p, RET_TYPE);
         true
     } else {
         false