diff --git a/src/lexer.c b/src/lexer.c
index 2530ab7..080a396 100644
--- a/src/lexer.c
+++ b/src/lexer.c
@@ -128,7 +128,7 @@ const char *noomL_formatTokenType(noomL_TokenType token_type) {
 
 }
 
-noomL_ErrorType noomL_lex(const char* s, noom_uint_t start, noomL_Token* token) {
+noomL_ErrorType noomL_lex(const char* s, noom_uint_t start, noomL_Token* token, noom_LuaVersion version) {
 	const char* str = s + start;
 
 	if (str[0] == '\0') {
diff --git a/src/lexer.h b/src/lexer.h
index 54872eb..76f9d3a 100644
--- a/src/lexer.h
+++ b/src/lexer.h
@@ -1,4 +1,5 @@
 #include "types.h"
+#include "noom.h"
 
 typedef enum noomL_TokenType {
 	NOOML_TOKEN_EOF = 0,
@@ -34,5 +35,5 @@ noom_uint_t noomL_getnumber(const char* s);
 
 const char *noomL_formatTokenType(noomL_TokenType token_type);
 
-noomL_ErrorType noomL_lex(const char* s, noom_uint_t start, noomL_Token* token); // TODO: add more error data
+noomL_ErrorType noomL_lex(const char* s, noom_uint_t start, noomL_Token* token, noom_LuaVersion version); // TODO: add more error data
 
diff --git a/src/main.c b/src/main.c
index 7645fa1..b6b03b4 100644
--- a/src/main.c
+++ b/src/main.c
@@ -33,14 +33,14 @@ void print_node(noomP_Node* node, noom_uint_t depth) {
 
 int main(int argc, char** argv) {
 	// uhh uhhh uhhhhh
-	const char* code = "local a, b";
+	const char* code = "local a, b = true, false\nif a == b then elseif a or b then end";
 	noom_uint_t pos = 0;
 
 	printf("LEX OUTPUT:\n");
 
 	noomL_Token token;
 	while (1) {
-		noomL_lex(code, pos, &token);
+		noomL_lex(code, pos, &token, NOOM_VERSION_51);
 
 		printf("%s ", noomL_formatTokenType(token.type));
 		for (noom_uint_t i = 0; i < token.length; i++) putchar((code + token.offset)[i]);
@@ -57,7 +57,7 @@ int main(int argc, char** argv) {
 	noomP_Node *program;
 	noomP_Node *last_node;
 
-	int success = noomP_parse(code, "shitass", &program, &last_node);
+	int success = noomP_parse(code, "shitass", NOOM_VERSION_54, &program, &last_node);
 	if (success != 0) return success;
 
 	print_node(program, 0);
diff --git a/src/noom.h b/src/noom.h
new file mode 100644
index 0000000..98e0eb9
--- /dev/null
+++ b/src/noom.h
@@ -0,0 +1,8 @@
+typedef enum noom_LuaVersion {
+	NOOM_VERSION_51,
+	NOOM_VERSION_52,
+	NOOM_VERSION_53,
+	NOOM_VERSION_54
+} noom_LuaVersion;
+
+
diff --git a/src/parser.c b/src/parser.c
index 05298ee..dbfeb42 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -36,7 +36,7 @@ const char *noomP_formatNodeType(noomP_NodeType node_type) {
 
 int noomP_peek(noomP_Parser* parser, noomL_Token* token) {
 	while (1) {
-		int success = noomL_lex(parser->code, parser->lex_offset, token);
+		int success = noomL_lex(parser->code, parser->lex_offset, token, parser->version);
 		if (success != 0) return -1; // TODO: proper error propogation and stuff
 
 		if (token->type == NOOML_TOKEN_WHITESPACE) {
@@ -578,9 +578,9 @@ noomP_Node* noomP_parseStatement(noomP_Parser* parser) {
 	return stmt;
 }
 
-int noomP_parse(const char* code, const char* filename, noomP_Node** outpointer, noomP_Node** last_node) {
+int noomP_parse(const char* code, const char* filename, noom_LuaVersion version, noomP_Node** outpointer, noomP_Node** last_node) {
 	noomP_Parser parser;
-	noomP_initParser(&parser, code, filename);
+	noomP_initParser(&parser, code, filename, version);
 
 	noomL_Token token;
 	noomP_Node* node = noomP_allocNode(&parser);
@@ -605,11 +605,12 @@ int noomP_parse(const char* code, const char* filename, noomP_Node** outpointer,
 	return 0;
 }
 
-int noomP_initParser(noomP_Parser* parser, const char* code, const char* filename) {
+int noomP_initParser(noomP_Parser* parser, const char* code, const char* filename, noom_LuaVersion version) {
 	parser->code = code;
 	parser->filename = filename;
 	parser->lex_offset = 0;
 	parser->last_node = (void *)0;
+	parser->version = version;
 
 	return 0;
 }
diff --git a/src/parser.h b/src/parser.h
index 118295a..7064e7f 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -37,6 +37,8 @@ typedef struct noomP_Node {
 } noomP_Node;
 
 typedef struct noomP_Parser { // todo: track location in code with line/column?
+	noom_LuaVersion version;
+	
 	const char* code;
 	const char* filename;
 	noom_uint_t lex_offset;
@@ -54,7 +56,7 @@ noomP_Node* noomP_allocNode(noomP_Parser* parser);
 noomP_Node* noomP_parseStatement(noomP_Parser* parser);
 noomP_Node* noomP_parseExpression(noomP_Parser* parser);
 
-int noomP_parse(const char* code, const char* filename, noomP_Node** outpointer, noomP_Node** last_node);
+int noomP_parse(const char* code, const char* filename, noom_LuaVersion version, noomP_Node** outpointer, noomP_Node** last_node);
 
-int noomP_initParser(noomP_Parser* parser, const char* code, const char* filename);
+int noomP_initParser(noomP_Parser* parser, const char* code, const char* filename, noom_LuaVersion version);