1 files changed, 1 insertions, 0 deletions

diff --git a/crates/ra_parser/src/grammar/expressions.rs b/crates/ra_parser/src/grammar/expressions.rs
index a0d5a99cb..5a3b9f589 100644
--- a/crates/ra_parser/src/grammar/expressions.rs
+++ b/crates/ra_parser/src/grammar/expressions.rs
@@ -154,6 +154,7 @@ fn current_op(p: &Parser) -> (u8, Op) {
             (PLUS, EQ) => return (1, Op::Composite(PLUSEQ, 2)),
             (MINUS, EQ) => return (1, Op::Composite(MINUSEQ, 2)),
             (STAR, EQ) => return (1, Op::Composite(STAREQ, 2)),
+            (PERCENT, EQ) => return (1, Op::Composite(PERCENTEQ, 2)),
             (SLASH, EQ) => return (1, Op::Composite(SLASHEQ, 2)),
             (PIPE, EQ) => return (1, Op::Composite(PIPEEQ, 2)),
             (AMP, EQ) => return (1, Op::Composite(AMPEQ, 2)),