diff --git a/llvm/include/llvm/CodeGen/RegAllocRegistry.h b/llvm/include/llvm/CodeGen/RegAllocRegistry.h
--- a/llvm/include/llvm/CodeGen/RegAllocRegistry.h
+++ b/llvm/include/llvm/CodeGen/RegAllocRegistry.h
@@ -66,7 +66,7 @@
 
 /// RegisterRegAlloc's global Registry tracks allocator registration.
 template <class T>
-MachinePassRegistry<RegisterRegAlloc::FunctionPassCtor>
+MachinePassRegistry<typename RegisterRegAllocBase<T>::FunctionPassCtor>
 RegisterRegAllocBase<T>::Registry;
 
 } // end namespace llvm