diff --git a/lib/private/Preview/Storage/LocalPreviewStorage.php b/lib/private/Preview/Storage/LocalPreviewStorage.php
index 229c95dab47..03fe7c0b79f 100644
--- a/lib/private/Preview/Storage/LocalPreviewStorage.php
+++ b/lib/private/Preview/Storage/LocalPreviewStorage.php
@@ -81,7 +81,9 @@ class LocalPreviewStorage implements IPreviewStorage {
 
 	private function createParentFiles(string $path): void {
 		$dirname = dirname($path);
-		@mkdir($dirname, recursive: true);
+		if (!is_dir($dirname)) {
+			mkdir($dirname, recursive: true);
+		}
 		if (!is_dir($dirname)) {
 			throw new NotPermittedException("Unable to create directory '$dirname'");
 		}