diff --git a/src/frontend/lexer.rs b/src/frontend/lexer.rs
index 6e52729..0c8fcdc 100644
--- a/src/frontend/lexer.rs
+++ b/src/frontend/lexer.rs
@@ -235,6 +235,7 @@ fn tokenize_operator_or_symbol(c: char, chars: &mut Peekable<Chars>, tokens: &mu
         '!' | '=' | '-' | '>' | '<' | '&' | '|' => {
             chars.next();
             handle_complex_operators(c, chars, tokens);
+            return;
         }
         _ => unreachable!(),
     }