diff --git a/src/tokenizer.c b/src/tokenizer.c
index 4f23327..8a920f3 100644
--- a/src/tokenizer.c
+++ b/src/tokenizer.c
@@ -96,7 +96,7 @@ static Token _Tokenizer_IdentifierToken(StringView* source)
 
 static Token _Tokenizer_SimpleToken(StringView* source)
 {
-	const char* literal_table[] = { "{", "}", "&", ":", "+", "->", "-", "*", "/", "|", "==", "!=", "<", "<=", ">", ">=", ",", ";" };
+	const char* literal_table[] = { "{", "}", "&", ":", "+", "->", "-", "*", "/", "|", "==", "!=", "<", "<=", ">", ">=", ",", ";", "bind", "as", "(", ")" };
 	const enum TokenType type_table[] = { 
 		TOKENTYPE_LEFT_BRACE,
 		TOKENTYPE_RIGHT_BRACE,
@@ -116,6 +116,10 @@ static Token _Tokenizer_SimpleToken(StringView* source)
 		TOKENTYPE_GREATEREQUAL,
 		TOKENTYPE_COMMA,
 		TOKENTYPE_SEMICOLON,
+		TOKENTYPE_BIND,
+		TOKENTYPE_AS,
+		TOKENTYPE_LEFT_PAREN,
+		TOKENTYPE_RIGHT_PAREN,
 	};
 
 	for (size_t i = 0; i < sizeof(literal_table) / sizeof(literal_table[0]); i++) {
@@ -208,8 +212,15 @@ const char* TokenType_ToString(enum TokenType type)
 			return "TOKENTYPE_COMMA";
 		case TOKENTYPE_SEMICOLON:
 			return "TOKENTYPE_SEMICOLON";
+		case TOKENTYPE_BIND:
+			return "BIND";
+		case TOKENTYPE_AS:
+			return "AS";
+		case TOKENTYPE_LEFT_PAREN:
+			return "LEFT_PAREN";
+		case TOKENTYPE_RIGHT_PAREN:
+			return "RIGHT_PAREN";
+                }
 
-	}
-
-	return "INVALID";
+        return "INVALID";
 }
diff --git a/src/tokenizer.h b/src/tokenizer.h
index be20d2f..618226f 100644
--- a/src/tokenizer.h
+++ b/src/tokenizer.h
@@ -27,6 +27,10 @@ enum TokenType {
 	TOKENTYPE_GREATERTHAN,
 	TOKENTYPE_GREATEREQUAL,
 	TOKENTYPE_COMMA,
+	TOKENTYPE_BIND,
+	TOKENTYPE_AS,
+	TOKENTYPE_LEFT_PAREN,
+	TOKENTYPE_RIGHT_PAREN,
 	TOKENTYPE_ERROR,
 };