1 files changed, 2 insertions, 0 deletions

diff --git a/crates/ra_mbe/src/mbe_parser.rs b/crates/ra_mbe/src/mbe_parser.rs
index 110783689..8e1e31e7d 100644
--- a/crates/ra_mbe/src/mbe_parser.rs
+++ b/crates/ra_mbe/src/mbe_parser.rs
@@ -124,6 +124,8 @@ mod tests {
         expect_err("invalid", "subtree");
 
         is_valid("($i:ident) => ()");
+        is_valid("($($i:ident)*) => ($_)");
+
         expect_err("$i:ident => ()", "subtree");
         expect_err("($i:ident) ()", "`=`");
         expect_err("($($i:ident)_) => ()", "repeat");