diff --git a/llvm/lib/CodeGen/MachineModuleInfoImpls.cpp b/llvm/lib/CodeGen/MachineModuleInfoImpls.cpp
index 07b173b..7b4f64b 100644
--- a/llvm/lib/CodeGen/MachineModuleInfoImpls.cpp
+++ b/llvm/lib/CodeGen/MachineModuleInfoImpls.cpp
@@ -25,6 +25,7 @@
 // Out of line virtual method.
 void MachineModuleInfoMachO::anchor() {}
 void MachineModuleInfoELF::anchor() {}
+void MachineModuleInfoCOFF::anchor() {}
 
 using PairTy = std::pair<MCSymbol *, MachineModuleInfoImpl::StubValueTy>;
 static int SortSymbolPair(const PairTy *LHS, const PairTy *RHS) {