diff --git a/ui/src/i18n/locales/en.json b/ui/src/i18n/locales/en.json
index 9f98d9ec..622b458b 100644
--- a/ui/src/i18n/locales/en.json
+++ b/ui/src/i18n/locales/en.json
@@ -218,7 +218,7 @@
         },
         "slug_name": {
           "label": "URL slug",
-          "description": "Spaces are not allowed, please use '-' instead.",
+          "description": "Must use the character set \"a-z\", \"0-9\", \"+ # - .\"",
           "msg": {
             "empty": "Please enter a name for the tag.",
             "range": "URL slug up to 35 characters"
@@ -264,7 +264,7 @@
         },
         "slug_name": {
           "label": "URL slug",
-          "info": "Spaces are not allowed, please use '-' instead."
+          "info": "Must use the character set \"a-z\", \"0-9\", \"+ # - .\""
         },
         "description": {
           "label": "Description"