diff --git a/Makefile b/Makefile
index a41a741..200b012 100644
--- a/Makefile
+++ b/Makefile
@@ -5,18 +5,20 @@ BIN=out
 CC=gcc
 CFLAGS=-Wall -g
 
-OBJ=y.tab.o lex.yy.o table.o
+OBJ=yacc.tab.o lex.yy.o table.o
 
 all: $(BIN)
 	@touch testFile # to prevent an error in case of deletion
 	./out  < testFile
 
 
+build: $(BIN)
+
 %.o: %.c
 	$(CC) -c $(CFLAGS) $(CPPFLAGS) $< -o $@
 
-y.tab.c: $(GRM)
-	bison --yacc -d $<
+yacc.tab.c: $(GRM)
+	bison -d $<
 
 lex.yy.c: $(LEX)
 	flex $<
diff --git a/lex.l b/lex.l
index 7d90db3..f4da442 100644
--- a/lex.l
+++ b/lex.l
@@ -1,8 +1,8 @@
 %{
-#include "y.tab.h"
+#include "table.h"
+#include "yacc.tab.h"
 %}
 
-
 /*options for compiling*/
 %option noyywrap
 %option noinput
@@ -52,9 +52,9 @@ INT_HEX 0x[0-9a-fA-F]+
 ";"             return(tSEMI);
 ","             return(tCOMMA);
 
-{ID}            return(tID);
-{INT_DEC}       return(tNB);
-{INT_HEX}       return(tNB);
+{ID}            {strncpy(yylval.str, yytext, NAME_MAX_LENGTH); return(tID);}
+{INT_DEC}       {yylval.nbInt = atoi(yytext); return(tNB);}
+{INT_HEX}       {yylval.nbInt = atoi(yytext); return(tNB);}
 
 
  /*comments are ignored, same for spaces and lines*/
diff --git a/yacc.y b/yacc.y
index 63165c1..4a07cc7 100644
--- a/yacc.y
+++ b/yacc.y
@@ -1,5 +1,3 @@
-%define parse.error detailed
-
 %{
 #include <stdio.h>
 #include <stdlib.h>
@@ -11,8 +9,7 @@
   void yyerror (const char *);
 }
 
-// TODO : PROBLEM DOES'NT COMPILE (enumVarType doesn't exist)
-%union {int nbInt; /*enumVarType*/ int type; char* string;}
+%union {char str[NAME_MAX_LENGTH]; int nbInt; enumVarType type; }
  /*loops keywords*/
 %token tWHILE tIF tELSE
  /*reserved keywords*/
@@ -31,7 +28,7 @@
 %token tLBRACE tRBRACE tLPAR tRPAR tSEMI tCOMMA
 
  /*nametags and values*/
-%token <string> tID
+%token <str> tID
 %token <nbInt> tNB