diff --git a/src/lexer/mod.rs b/src/lexer/mod.rs
index 76c1f6d..85bf92b 100644
--- a/src/lexer/mod.rs
+++ b/src/lexer/mod.rs
@@ -288,4 +288,7 @@ pub enum Token {
 
     #[token("%=")]
     ModAssign,
+
+    #[token("++")]
+    PlusPlus,
 }