diff --git a/include/lib/util_arch.h b/include/lib/util_arch.h
index 3d82d49d..5b9ae9ef 100644
--- a/include/lib/util_arch.h
+++ b/include/lib/util_arch.h
@@ -28,6 +28,8 @@ enum util_arch_machine_type {
 	UTIL_ARCH_MACHINE_TYPE_Z15_T02	= 8562,
 	UTIL_ARCH_MACHINE_TYPE_Z16	= 3931,
 	UTIL_ARCH_MACHINE_TYPE_Z16_A02	= 3932,
+	UTIL_ARCH_MACHINE_TYPE_Z17	= 9175,
+	UTIL_ARCH_MACHINE_TYPE_Z17_2	= 9176,
 };
 
 int util_arch_machine_type(void);
diff --git a/libutil/util_arch.c b/libutil/util_arch.c
index dbebff2c..4f572761 100644
--- a/libutil/util_arch.c
+++ b/libutil/util_arch.c
@@ -97,6 +97,9 @@ const char *util_arch_machine_type_to_str(int type)
 	case UTIL_ARCH_MACHINE_TYPE_Z16:
 	case UTIL_ARCH_MACHINE_TYPE_Z16_A02:
 		return "IBM z16";
+	case UTIL_ARCH_MACHINE_TYPE_Z17:
+	case UTIL_ARCH_MACHINE_TYPE_Z17_2:
+		return "IBM z17";
 	default:
 		return "Unknown machine type";
 	}