diff --git a/thumbnails/pkg/config/config.go b/thumbnails/pkg/config/config.go
index b06e4a723e..51c0972480 100644
--- a/thumbnails/pkg/config/config.go
+++ b/thumbnails/pkg/config/config.go
@@ -36,7 +36,7 @@ type FileSystemSource struct {
 
 // Thumbnail defines the available thumbnail related configuration.
 type Thumbnail struct {
-	Resolutions         []string          `ocisConfig:"resolutions"` // TODO: how to configure
+	Resolutions         []string          `ocisConfig:"resolutions"`
 	FileSystemStorage   FileSystemStorage `ocisConfig:"filesystem_storage"`
 	WebdavAllowInsecure bool              `ocisConfig:"webdav_allow_insecure" env:"OCIS_INSECURE;THUMBNAILS_WEBDAVSOURCE_INSECURE"`
 	CS3AllowInsecure    bool              `ocisConfig:"cs3_allow_insecure" env:"OCIS_INSECURE;THUMBNAILS_CS3SOURCE_INSECURE"`