diff --git a/AST/CFG.cpp b/AST/CFG.cpp
index 98a2074..8a98122 100644
--- a/AST/CFG.cpp
+++ b/AST/CFG.cpp
@@ -60,7 +60,7 @@
   typedef llvm::DenseMap<LabelStmt*,CFGBlock*> LabelMapTy;
   LabelMapTy LabelMap;
   
-  typedef std::list<CFGBlock*> BackpatchBlocksTy;
+  typedef std::vector<CFGBlock*> BackpatchBlocksTy;
   BackpatchBlocksTy BackpatchBlocks;
   
 public: