diff --git a/assets/i18n/es.json b/assets/i18n/es.json
index 232370f3..4a1463e5 100644
--- a/assets/i18n/es.json
+++ b/assets/i18n/es.json
@@ -78,6 +78,7 @@
     "theme-system": "Sistema",
     "theme-light": "Claro",
     "theme-dark": "Oscuro",
+    "theme-black": "Negro",
     "nsfw": "NSFW",
     "nsfw-subtitle": "Mostrar contenido NSFW",
     "external-player": "Reproductor de vídeo preferido",