diff --git a/include/llvm/Transforms/Scalar/ConstantHoisting.h b/include/llvm/Transforms/Scalar/ConstantHoisting.h
index 26d4a2476a8..11379e59467 100644
--- a/include/llvm/Transforms/Scalar/ConstantHoisting.h
+++ b/include/llvm/Transforms/Scalar/ConstantHoisting.h
@@ -198,7 +198,6 @@ private:
   // constant GEP base.
   bool emitBaseConstants(GlobalVariable *BaseGV);
   void deleteDeadCastInst() const;
-  bool optimizeConstants(Function &Fn);
 };
 
 } // end namespace llvm