diff --git a/lib/asn1/k5.asn1 b/lib/asn1/k5.asn1
index 8611bee22..691da49c5 100644
--- a/lib/asn1/k5.asn1
+++ b/lib/asn1/k5.asn1
@@ -332,7 +332,7 @@ ETYPE-INFO2-ENTRY ::= SEQUENCE {
 	s2kparams[2]		OCTET STRING OPTIONAL
 }
 
-ETYPE-INFO2 ::= SEQUENCE OF ETYPE-INFO2-ENTRY
+ETYPE-INFO2 ::= SEQUENCE SIZE (1..MAX) OF ETYPE-INFO2-ENTRY
 
 METHOD-DATA ::= SEQUENCE OF PA-DATA
 
@@ -341,7 +341,7 @@ TypedData ::=   SEQUENCE {
 	data-value[1]		OCTET STRING OPTIONAL
 }
 
-TYPED-DATA ::= SEQUENCE OF TypedData
+TYPED-DATA ::= SEQUENCE SIZE (1..MAX) OF TypedData
 
 KDC-REQ-BODY ::= SEQUENCE {
 	kdc-options[0]		KDCOptions,