diff --git a/core/src/lexer.rs b/core/src/lexer.rs
index 46e29ac9..59fedde4 100644
--- a/core/src/lexer.rs
+++ b/core/src/lexer.rs
@@ -383,6 +383,13 @@ impl<'a> Lexer<'a> {
 
             '=' => Ok(Token::Equal),
             '<' | '>' => self.consume_operator(ch),
+            '#' if match self.input.peek() {
+                Some(Ok('!')) => true,
+                _ => false,
+            } =>
+            {
+                self.consume_rest_of_line()
+            }
 
             ch if ch.is_digit(10) => self.consume_number(ch),
             ch if ch.is_word() => self.consume_symbol(ch),