diff --git a/testdata/single_value_constraint.asn b/testdata/single_value_constraint.asn
index 50177c1..a8fb9be 100644
--- a/testdata/single_value_constraint.asn
+++ b/testdata/single_value_constraint.asn
@@ -18,4 +18,6 @@ BEGIN
 
   Alias ::= OCTET STRING
   ConstrainedAlias ::= Alias (SIZE(8))
+
+  PolicyQualifierId ::= OBJECT IDENTIFIER ( 1 | 0 )
 END