diff --git a/types_generate.go b/types_generate.go
index 8c897ec11..02576b1d6 100644
--- a/types_generate.go
+++ b/types_generate.go
@@ -193,6 +193,8 @@ func main() {
 				fallthrough
 			case st.Tag(i) == `dns:"hex"`:
 				o("l += len(rr.%s)/2 + 1\n")
+			case st.Tag(i) == `dns:"any"`:
+				o("l += len(rr.%s)\n")
 			case st.Tag(i) == `dns:"a"`:
 				o("l += net.IPv4len // %s\n")
 			case st.Tag(i) == `dns:"aaaa"`:
diff --git a/zmsg.go b/zmsg.go
index 6e2e0c5b9..9cbc8ae5d 100644
--- a/zmsg.go
+++ b/zmsg.go
@@ -898,7 +898,7 @@ func (rr *NULL) pack(msg []byte, off int, compression map[string]int, compress b
 		return off, err
 	}
 	headerEnd := off
-	off, err = packStringOctet(rr.Anything, msg, off)
+	off, err = packStringAny(rr.Anything, msg, off)
 	if err != nil {
 		return off, err
 	}
@@ -2713,7 +2713,7 @@ func unpackNULL(h RR_Header, msg []byte, off int) (RR, int, error) {
 	rdStart := off
 	_ = rdStart
 
-	rr.Anything, off, err = unpackStringOctet(msg, off)
+	rr.Anything, off, err = unpackStringAny(msg, off, rdStart+int(rr.Hdr.Rdlength))
 	if err != nil {
 		return rr, off, err
 	}