diff --git a/src/i18n/resources/es.json b/src/i18n/resources/es.json
index 646b0808..a2d93db4 100644
--- a/src/i18n/resources/es.json
+++ b/src/i18n/resources/es.json
@@ -231,6 +231,11 @@
           "submenu": {
             "pixels": "{{Calidad}} pixeles"
           }
+        },
+        "size": {
+          "submenu": {
+            "percent": "{{Tamaño}}"
+          }
         }
       }
     }