diff --git a/src/libponyc/codegen/host.cc b/src/libponyc/codegen/host.cc
index 43a89d2d93..0f89fe928e 100644
--- a/src/libponyc/codegen/host.cc
+++ b/src/libponyc/codegen/host.cc
@@ -24,7 +24,7 @@ using namespace llvm;
 
 LLVMTargetMachineRef codegen_machine(LLVMTargetRef target, pass_opt_t* opt)
 {
-  Optional<Reloc::Model> reloc;
+  std::optional<Reloc::Model> reloc;
 
   if(opt->pic)
     reloc = Reloc::PIC_;
@@ -52,7 +52,7 @@ LLVMTargetMachineRef codegen_machine(LLVMTargetRef target, pass_opt_t* opt)
   Target* t = reinterpret_cast<Target*>(target);
 
   TargetMachine* m = t->createTargetMachine(opt->triple, opt->cpu,
-    opt->features, options, reloc, llvm::None, opt_level, false);
+    opt->features, options, reloc, std::nullopt, opt_level, false);
 
   return reinterpret_cast<LLVMTargetMachineRef>(m);
 }