diff --git a/src/ppc/uarch.c b/src/ppc/uarch.c
index c758b11..52b4273 100644
--- a/src/ppc/uarch.c
+++ b/src/ppc/uarch.c
@@ -238,6 +238,10 @@ bool has_altivec(struct uarch* arch) {
     case UARCH_POWER7PLUS:
     case UARCH_POWER8:
     case UARCH_POWER9:
+    case UARCH_POWER9_DD20:
+    case UARCH_POWER9_DD21:
+    case UARCH_POWER9_DD22:
+    case UARCH_POWER9_DD23:
     case UARCH_POWER10:
       return true;
     default: