diff --git a/llvm/lib/MC/MCDisassembler/MCExternalSymbolizer.cpp b/llvm/lib/MC/MCDisassembler/MCExternalSymbolizer.cpp
index 4c0bf31..5fc2ca4 100644
--- a/llvm/lib/MC/MCDisassembler/MCExternalSymbolizer.cpp
+++ b/llvm/lib/MC/MCDisassembler/MCExternalSymbolizer.cpp
@@ -17,7 +17,7 @@
 using namespace llvm;
 
 namespace llvm {
-class TargetTuple;
+class Triple;
 }
 
 // This function tries to add a symbolic operand in place of the immediate
@@ -188,8 +188,7 @@
 }
 
 namespace llvm {
-MCSymbolizer *createMCSymbolizer(const TargetTuple &TT,
-                                 LLVMOpInfoCallback GetOpInfo,
+MCSymbolizer *createMCSymbolizer(const Triple &TT, LLVMOpInfoCallback GetOpInfo,
                                  LLVMSymbolLookupCallback SymbolLookUp,
                                  void *DisInfo, MCContext *Ctx,
                                  std::unique_ptr<MCRelocationInfo> &&RelInfo) {