diff --git a/g10/armor.c b/g10/armor.c
index 36215a33e..8fcb74ac5 100644
--- a/g10/armor.c
+++ b/g10/armor.c
@@ -233,6 +233,7 @@ is_armored (const byte *buf)
       case PKT_COMPRESSED:
       case PKT_ENCRYPTED:
       case PKT_ENCRYPTED_MDC:
+      case PKT_ENCRYPTED_AEAD:
       case PKT_PLAINTEXT:
       case PKT_OLD_COMMENT:
       case PKT_COMMENT: