diff --git a/llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp b/llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp
index 06bce465b524..a9f023616e24 100644
--- a/llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp
+++ b/llvm/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp
@@ -1191,7 +1191,7 @@ void X86MCCodeEmitter::EmitOpcodePrefix(uint64_t TSFlags, unsigned &CurByte,
     EmitByte(0x67, CurByte, OS);
 
   // Emit the operand size opcode prefix as needed.
-  if (TSFlags & (is16BitMode(Features) ? X86II::OpSize16 : X86II::OpSize))
+  if (TSFlags & (is16BitMode() ? X86II::OpSize16 : X86II::OpSize))
     EmitByte(0x66, CurByte, OS);
 
   bool Need0FPrefix = false;