diff --git a/llvm/lib/IR/BasicBlock.cpp b/llvm/lib/IR/BasicBlock.cpp
index 3932576759d9e..5f0780847938f 100644
--- a/llvm/lib/IR/BasicBlock.cpp
+++ b/llvm/lib/IR/BasicBlock.cpp
@@ -39,7 +39,7 @@ cl::opt<bool>
 bool WriteNewDbgInfoFormatToBitcode /*set default value in cl::init() below*/;
 cl::opt<bool, true> WriteNewDbgInfoFormatToBitcode2(
     "write-experimental-debuginfo-iterators-to-bitcode", cl::Hidden,
-    cl::location(WriteNewDbgInfoFormatToBitcode), cl::init(true));
+    cl::location(WriteNewDbgInfoFormatToBitcode), cl::init(false));
 
 DPMarker *BasicBlock::createMarker(Instruction *I) {
   assert(IsNewDbgInfoFormat &&