diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp
index 459c3589d3f..1f00b3b2b0d 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -498,7 +498,8 @@ PPCRegisterInfo::hasReservedSpillSlot(const MachineFunction &MF,
     } else if (CRSpillFrameIdx) {
       FrameIdx = CRSpillFrameIdx;
     } else {
-      MachineFrameInfo *MFI = ((MachineFunction &)MF).getFrameInfo();
+      MachineFrameInfo *MFI = 
+        (const_cast<MachineFunction &>(MF)).getFrameInfo();
       FrameIdx = MFI->CreateFixedObject((uint64_t)4, (int64_t)-4, true);
       CRSpillFrameIdx = FrameIdx;
     }