diff --git a/src/config/locales/es_es/translation.json b/src/config/locales/es_es/translation.json
index 19b611b9..165637f7 100644
--- a/src/config/locales/es_es/translation.json
+++ b/src/config/locales/es_es/translation.json
@@ -158,7 +158,7 @@
         "header_menu_color": "Menú de encabezamiento",
         "wrapper_mask_color": "Modal wrapper"
       },
-      "font_size": "Font size",
+      "font_size": "Tamaño de letra",
       "font_family": "Font family",
       "toot_padding": "Padding around toots",
       "display_style": {