diff --git a/compiler/erg_parser/parse.rs b/compiler/erg_parser/parse.rs
index 70c0ef13..fa3c403e 100644
--- a/compiler/erg_parser/parse.rs
+++ b/compiler/erg_parser/parse.rs
@@ -1328,6 +1328,28 @@ impl Parser {
                         }
                     }
                 }
+                Some(t) if t.is(LSqBr) => {
+                    let Some(ExprOrOp::Expr(obj)) = stack.pop() else {
+                        self.level -= 1;
+                        let err = self.skip_and_throw_syntax_err(caused_by!());
+                        self.errs.push(err);
+                        return Err(());
+                    };
+                    self.skip();
+                    let index = self
+                        .try_reduce_expr(false, false, in_brace, false)
+                        .map_err(|_| self.stack_dec())?;
+                    let r_sqbr = self.lpop();
+                    if !r_sqbr.is(RSqBr) {
+                        self.restore(r_sqbr);
+                        self.level -= 1;
+                        let err = self.skip_and_throw_syntax_err(caused_by!());
+                        self.errs.push(err);
+                        return Err(());
+                    }
+                    let acc = Accessor::subscr(obj, index, r_sqbr);
+                    stack.push(ExprOrOp::Expr(Expr::Accessor(acc)));
+                }
                 Some(t) if t.is(Comma) && winding => {
                     let first_elem = PosOrKwArg::Pos(PosArg::new(
                         enum_unwrap!(stack.pop(), Some:(ExprOrOp::Expr:(_))),