EXTERNAL has tag 8

diff --git a/libasn1parser/asn1p_expr2uclass.h b/libasn1parser/asn1p_expr2uclass.h
index 416c9f7..20f3700 100644
--- a/libasn1parser/asn1p_expr2uclass.h
+++ b/libasn1parser/asn1p_expr2uclass.h
@@ -10,8 +10,8 @@
 	[ ASN_BASIC_OCTET_STRING ]	= 4,
 	[ ASN_BASIC_NULL ]		= 5,
 	[ ASN_BASIC_OBJECT_IDENTIFIER ]	= 6,
-	[ ASN_BASIC_EXTERNAL ]		= 7,
 	[ ASN_STRING_ObjectDescriptor ]	= 7,
+	[ ASN_BASIC_EXTERNAL ]		= 8,
 	[ ASN_BASIC_REAL ]		= 9,
 	[ ASN_BASIC_ENUMERATED ]	= 10,
 	[ ASN_BASIC_EMBEDDED_PDV ]	= 11,