diff --git a/index.js b/index.js
index f748cf1..129be33 100644
--- a/index.js
+++ b/index.js
@@ -29,7 +29,12 @@ const operations = Object.freeze({
   LDAP_RES_MODRDN: 0x6d,
   LDAP_RES_COMPARE: 0x6f,
   LDAP_RES_EXTENSION: 0x78,
-  LDAP_RES_INTERMEDIATE: 0x79
+  LDAP_RES_INTERMEDIATE: 0x79,
+
+  // This is really an operation. It's a specific
+  // sequence tag. But the referral situation is
+  // so specific it makes more sense to put it here.
+  LDAP_RES_REFERRAL: 0xa3
 })
 
 /**
diff --git a/package.json b/package.json
index e30ce29..08c5768 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ldapjs/protocol",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "description": "Provides constants for LDAP ASN.1 tags and values.",
   "main": "index.js",
   "scripts": {