diff --git a/i18n/io.json b/i18n/io.json
index 17a20bec..26c2e360 100644
--- a/i18n/io.json
+++ b/i18n/io.json
@@ -29,6 +29,7 @@
 	"templatedata-doc-param-type-wiki-user-name": "Uzero",
 	"templatedata-doc-params": "Parametri di shabloni",
 	"templatedata-editbutton": "Administrar Shablono pri Dati",
+	"templatedata-exists-on-related-page": "Atencez: ja existas grupo di datumi de shablono ye relata pagino \"[[$1]]\".",
 	"templatedata-helplink": "Informi pri ShablonoDatumi (TemplateData)",
 	"templatedata-modal-button-apply": "Aplikar",
 	"templatedata-modal-button-back": "Retroirar",