diff --git a/system/HTTP/Files/FileCollection.php b/system/HTTP/Files/FileCollection.php
index 95f51cb490f0..1d76195d6bbb 100644
--- a/system/HTTP/Files/FileCollection.php
+++ b/system/HTTP/Files/FileCollection.php
@@ -310,7 +310,7 @@ protected function fixFilesArray(array $data): array
 	 */
 	protected function getValueDotNotationSyntax(array $index, array $value)
 	{
-		if (is_array($index) && ! empty($index))
+		if (! empty($index))
 		{
 			$current_index = array_shift($index);
 		}