diff --git a/.gitignore b/.gitignore
index 1ebe832..9d64346 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,5 @@
 .gitignore
 .idea
+out
+yacc.tab.*
+yacc.output
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 34ad327..f87ce60 100644
--- a/Makefile
+++ b/Makefile
@@ -27,5 +27,5 @@ $(BIN): $(OBJ)
 	$(CC) $(CFLAGS) $(CPPFLAGS) $^ -o $@
 
 clean:
-	rm $(OBJ) y.tab.c y.tab.h lex.yy.c
+	rm $(OBJ) yacc.tab.c yacc.tab.h lex.yy.c
 
diff --git a/yacc.y b/yacc.y
index 9eeb4cf..49a3713 100644
--- a/yacc.y
+++ b/yacc.y
@@ -6,9 +6,12 @@
 #include "table.h"
 
 int t;
+%}
+
+%code provides{
 int yylex (void);
 void yyerror (const char *);
-%}
+}
 
 %union {char str[NAME_MAX_LENGTH]; int nbInt; enumVarType type; }
  /*loops keywords*/