diff --git a/llvm/lib/CodeGen/VirtRegMap.cpp b/llvm/lib/CodeGen/VirtRegMap.cpp
index 60859fd..49e819e 100644
--- a/llvm/lib/CodeGen/VirtRegMap.cpp
+++ b/llvm/lib/CodeGen/VirtRegMap.cpp
@@ -222,7 +222,6 @@
       MCRegister PhysReg, const MachineInstr &MI) const;
 
 public:
-  static char ID;
   VirtRegRewriter(bool ClearVirtRegs, SlotIndexes *Indexes, LiveIntervals *LIS,
                   LiveRegMatrix *LRM, VirtRegMap *VRM,
                   LiveDebugVariables *DebugVars)