diff --git a/compiler/utils/x86/assembler_x86.h b/compiler/utils/x86/assembler_x86.h
index fe07e8f..9fecf1e 100644
--- a/compiler/utils/x86/assembler_x86.h
+++ b/compiler/utils/x86/assembler_x86.h
@@ -251,7 +251,7 @@
 
   void cmovl(Condition condition, Register dst, Register src);
 
-  void setb(Condition condition, ByteRegister dst);
+  void setb(Condition condition, Register dst);
 
   void movaps(XmmRegister dst, XmmRegister src);
   void movss(XmmRegister dst, const Address& src);