1 files changed, 11 insertions, 3 deletions
diff --git a/src/tools/rust-analyzer/crates/parser/src/grammar/params.rs b/src/tools/rust-analyzer/crates/parser/src/grammar/params.rs
index 20e8e95f0..74eae9151 100644
--- a/src/tools/rust-analyzer/crates/parser/src/grammar/params.rs
+++ b/src/tools/rust-analyzer/crates/parser/src/grammar/params.rs
@@ -1,3 +1,5 @@
+use crate::grammar::attributes::ATTRIBUTE_FIRST;
+
 use super::*;
 
 // test param_list
@@ -66,14 +68,20 @@ fn list_(p: &mut Parser<'_>, flavor: Flavor) {
             }
         };
 
-        if !p.at_ts(PARAM_FIRST) {
+        if !p.at_ts(PARAM_FIRST.union(ATTRIBUTE_FIRST)) {
             p.error("expected value parameter");
             m.abandon(p);
             break;
         }
         param(p, m, flavor);
-        if !p.at(ket) {
-            p.expect(T![,]);
+        if !p.at(T![,]) {
+            if p.at_ts(PARAM_FIRST.union(ATTRIBUTE_FIRST)) {
+                p.error("expected `,`");
+            } else {
+                break;
+            }
+        } else {
+            p.bump(T![,]);
         }
     }