diff --git a/src/Database/Validator/Index.php b/src/Database/Validator/Index.php
index 59a8958d9..a6726b455 100644
--- a/src/Database/Validator/Index.php
+++ b/src/Database/Validator/Index.php
@@ -215,7 +215,7 @@ public function checkIndexLength(Document $index): bool
      * @param Document $index
      * @return bool
      */
-    public function checkIndexKeyName(Document $index): bool
+    public function checkReservedNames(Document $index): bool
     {
         $key = \strtolower($index->getAttribute('key', $index->getAttribute('$id')));
         if ($key === 'primary') {
@@ -260,7 +260,7 @@ public function isValid($value): bool
             return false;
         }
 
-        if (!$this->checkIndexKeyName($value)) {
+        if (!$this->checkReservedNames($value)) {
             return false;
         }
 
diff --git a/tests/e2e/Adapter/Base.php b/tests/e2e/Adapter/Base.php
index b458f33db..c45206645 100644
--- a/tests/e2e/Adapter/Base.php
+++ b/tests/e2e/Adapter/Base.php
@@ -1097,7 +1097,7 @@ public function testCreateListExistsDeleteCollection(): void
         $this->assertEquals(false, static::getDatabase()->exists($this->testDatabase, 'actors'));
     }
 
-    public function testCreateIndex()
+    public function testCreateIndex():void
     {
         $database = $this->getDatabase();