diff --git a/llvm/lib/Transforms/Vectorize/VPlan.cpp b/llvm/lib/Transforms/Vectorize/VPlan.cpp
index dd26a059d56ad..5e4303a4c5fff 100644
--- a/llvm/lib/Transforms/Vectorize/VPlan.cpp
+++ b/llvm/lib/Transforms/Vectorize/VPlan.cpp
@@ -52,10 +52,6 @@
 using namespace llvm;
 using namespace llvm::VPlanPatternMatch;
 
-namespace llvm {
-extern cl::opt<bool> EnableVPlanNativePath;
-}
-
 /// @{
 /// Metadata attribute names
 const char LLVMLoopVectorizeFollowupAll[] = "llvm.loop.vectorize.followup_all";