diff --git a/src/symbol_table.h b/src/symbol_table.h
index 53c2fa2..cf1273a 100644
--- a/src/symbol_table.h
+++ b/src/symbol_table.h
@@ -76,7 +76,8 @@ typedef enum {
         TYPE_ALL_ELSE = 7,
         TYPE_UNDEFINED = 8,
         TYPE_RECORD = 9,
-        TYPE_ARRAY = 10
+        TYPE_ARRAY = 10,
+        TYPE_SYSTEM_DEFINED = 11
 } types;
 
 AdInfo *CreatePrimitiveInfo(int size);
@@ -101,7 +102,7 @@ SymbolTable *CreateScope(SymbolTable *ParentScope, int Line, int Column);
 SymbolTable *init(SymbolTable *start);
 TableNode *populateTypeAndInfo(TableNode *tn, TableNode *type, AdInfo *info);
 int getAdInfoType(TableNode *tn);
-TableNode *CreateEntry(SymbolTable *table, TableNode *typeOf, char *id,
+TableNode *CreateEntry(SymbolTable *table, int tag, TableNode *typeOf, char *id,
                        AdInfo *ad);
 char *getType(TableNode *tn);
 char *getName(TableNode *tn);