diff --git a/adminer/drivers/mongo.inc.php b/adminer/drivers/mongo.inc.php
index b4664683..b31cd098 100644
--- a/adminer/drivers/mongo.inc.php
+++ b/adminer/drivers/mongo.inc.php
@@ -171,6 +171,10 @@ if (isset($_GET["mongo"])) {
 			return array_fill_keys($connection->_db->getCollectionNames(true), 'table');
 		}
 
+		function create_database($db, $collation) {
+			return true;
+		}
+
 		function drop_databases($databases) {
 			global $connection;
 			foreach ($databases as $db) {
@@ -436,6 +440,10 @@ if (isset($_GET["mongo"])) {
 			return $collections;
 		}
 
+		function create_database($db, $collation) {
+			return true;
+		}
+
 		function drop_databases($databases) {
 			return false;
 		}