diff --git a/symbol_table.h b/symbol_table.h
index 4830345..e2372a0 100644
--- a/symbol_table.h
+++ b/symbol_table.h
@@ -27,3 +27,5 @@ typedef struct SymbolTable{
 
 TableNode* CreateEntry(SymbolTable* table, char* typeOf, char* id);
 SymbolTable* CreateScope(SymbolTable* ParentScope, int Line, int Column);
+TableNode * table_lookup(SymbolTable * table, char * x);
+TableNode * look_up(SymbolTable * table, char * x);