diff --git a/src/include/tokenize.h b/src/include/tokenize.h
index 74e2c7b..2e08661 100644
--- a/src/include/tokenize.h
+++ b/src/include/tokenize.h
@@ -4,7 +4,7 @@
 #include <vector>
 using namespace std;
 
-enum class TokenType { Type, Number, Plus, Star, Slash, Minus, Equal, Semicolon, LParenthese, RParenthese };
+enum class TokenType { Type, Number, Plus, Minus, Star, Slash, Percent, Equal, Semicolon, LParenthese, RParenthese };
 enum class Type { Int };
 
 union TokenData {