diff --git a/src/math/parser.rs b/src/math/parser.rs
index a3124aa..808cf34 100644
--- a/src/math/parser.rs
+++ b/src/math/parser.rs
@@ -69,7 +69,6 @@ impl Parser {
                     left = Expression::Operation(Operator::Modulo, Box::new(left), Box::new(right));
                 }
                 Token::OpenParen => {
-                    self.position += 1;
                     let right = self.parse_group();
                     left =
                         Expression::Operation(Operator::Multiply, Box::new(left), Box::new(right));