diff --git a/src/domaindb.js b/src/domaindb.js
index f46998846..36a3903a2 100644
--- a/src/domaindb.js
+++ b/src/domaindb.js
@@ -7,7 +7,6 @@ exports = module.exports = {
     get: get,
     getAll: getAll,
     update: update,
-    upsert: upsert,
     del: del,
 
     _clear: clear,
@@ -68,20 +67,6 @@ function add(name, domain, callback) {
     });
 }
 
-function upsert(domain, zoneName, provider, config, callback) {
-    assert.strictEqual(typeof domain, 'string');
-    assert.strictEqual(typeof zoneName, 'string');
-    assert.strictEqual(typeof provider, 'string');
-    assert.strictEqual(typeof config, 'object');
-    assert.strictEqual(typeof callback, 'function');
-
-    database.query('REPLACE INTO domains (domain, zoneName, provider, configJson) VALUES (?, ?, ?, ?)', [ domain, zoneName, provider, JSON.stringify(config) ], function (error) {
-        if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
-
-        callback(null);
-    });
-}
-
 function update(domain, provider, config, callback) {
     assert.strictEqual(typeof domain, 'string');
     assert.strictEqual(typeof provider, 'string');