diff --git a/include/inc-cfg/domgraph.hpp b/include/inc-cfg/domgraph.hpp
index 98b517f4e80ee5be4ee2167e0432836a8870004a..378d6c73508a25d0fe8f6cc41172211ff97d52c2 100644
--- a/include/inc-cfg/domgraph.hpp
+++ b/include/inc-cfg/domgraph.hpp
@@ -20,8 +20,11 @@ namespace IRDB_SDK
 
 	using namespace std;
 
-	using  DominatorMap_t    = map<const BasicBlock_t*, BasicBlockSet_t>; 
-	using  BlockToBlockMap_t = map<const BasicBlock_t*, const BasicBlock_t*>;
+	using DominatorMap_t     = map<const BasicBlock_t*, BasicBlockSet_t>; 
+	using BlockToBlockMap_t  = map<const BasicBlock_t*, const BasicBlock_t*>;
+	using BasicBlockVector_t = vector<BasicBlock_t*>;
+
+	BasicBlockVector_t getDFSOrder(ControlFlowGraph_t* cfg);
 
 	class DominatorGraph_t
 	{