diff --git a/sample/test_util.cpp b/sample/test_util.cpp
index e011783..15240f1 100644
--- a/sample/test_util.cpp
+++ b/sample/test_util.cpp
@@ -88,6 +88,7 @@
 		{ Cpu::tCLDEMOTE, "cldemote" },
 		{ Cpu::tMOVDIRI, "movdiri" },
 		{ Cpu::tMOVDIR64B, "movdir64b" },
+		{ Cpu::tSERIALIZE, "serialize" },
 		{ Cpu::tCLZERO, "clzero" },
 		{ Cpu::tAMX_FP16, "amx_fp16" },
 		{ Cpu::tAVX_VNNI_INT8, "avx_vnni_int8" },
diff --git a/xbyak/xbyak_util.h b/xbyak/xbyak_util.h
index 6d9906e..eba87e0 100644
--- a/xbyak/xbyak_util.h
+++ b/xbyak/xbyak_util.h
@@ -456,6 +456,7 @@
 	XBYAK_DEFINE_TYPE(72, tRAO_INT);
 	XBYAK_DEFINE_TYPE(73, tCMPCCXADD);
 	XBYAK_DEFINE_TYPE(74, tPREFETCHITI);
+	XBYAK_DEFINE_TYPE(75, tSERIALIZE);
 
 #undef XBYAK_SPLIT_ID
 #undef XBYAK_DEFINE_TYPE
@@ -590,9 +591,10 @@
 			if (ECX & (1U << 25)) type_ |= tCLDEMOTE;
 			if (ECX & (1U << 27)) type_ |= tMOVDIRI;
 			if (ECX & (1U << 28)) type_ |= tMOVDIR64B;
+			if (EDX & (1U << 14)) type_ |= tSERIALIZE;
+			if (EDX & (1U << 22)) type_ |= tAMX_BF16;
 			if (EDX & (1U << 24)) type_ |= tAMX_TILE;
 			if (EDX & (1U << 25)) type_ |= tAMX_INT8;
-			if (EDX & (1U << 22)) type_ |= tAMX_BF16;
 			if (maxNumSubLeaves >= 1) {
 				getCpuidEx(7, 1, data);
 				if (EAX & (1U << 3)) type_ |= tRAO_INT;