diff --git a/compiler/utils/x86/assembler_x86.h b/compiler/utils/x86/assembler_x86.h
index 6ea66a5..a630ccd 100644
--- a/compiler/utils/x86/assembler_x86.h
+++ b/compiler/utils/x86/assembler_x86.h
@@ -301,6 +301,8 @@
 
   void comiss(XmmRegister a, XmmRegister b);
   void comisd(XmmRegister a, XmmRegister b);
+  void ucomiss(XmmRegister a, XmmRegister b);
+  void ucomisd(XmmRegister a, XmmRegister b);
 
   void sqrtsd(XmmRegister dst, XmmRegister src);
   void sqrtss(XmmRegister dst, XmmRegister src);