diff --git a/arch/mips/include/uapi/asm/inst.h b/arch/mips/include/uapi/asm/inst.h
index b7492c69aa006349cc80690bd3f548b2dbd3fafa..89e91558741763b2f13c947a94092db4e7c8a013 100644
--- a/arch/mips/include/uapi/asm/inst.h
+++ b/arch/mips/include/uapi/asm/inst.h
@@ -303,6 +303,7 @@ enum mm_32axf_minor_op {
 	mm_tlbwr_op = 0x0cd,
 	mm_jalrs_op = 0x13c,
 	mm_jalrshb_op = 0x17c,
+	mm_sync_op = 0x1ad,
 	mm_syscall_op = 0x22d,
 	mm_eret_op = 0x3cd,
 };