diff --git a/backend/src/main/groovy/edu/internet2/tier/shibboleth/admin/ui/service/JsonSchemaBuilderService.groovy b/backend/src/main/groovy/edu/internet2/tier/shibboleth/admin/ui/service/JsonSchemaBuilderService.groovy
index 8af0be7d3..cf6a096fc 100644
--- a/backend/src/main/groovy/edu/internet2/tier/shibboleth/admin/ui/service/JsonSchemaBuilderService.groovy
+++ b/backend/src/main/groovy/edu/internet2/tier/shibboleth/admin/ui/service/JsonSchemaBuilderService.groovy
@@ -50,8 +50,8 @@ class JsonSchemaBuilderService {
                 definition['uniqueItems'] = false
             }
             def items = [type     : 'string',
-                         minLength: '1', // TODO: should this be configurable?
-                         maxLength: '255'] //TODO: or this?
+                         minLength: 1, // TODO: should this be configurable?
+                         maxLength: 255] //TODO: or this?
             items.widget = [id: 'datalist', data: it['defaultValues']]
 
             definition['items'] = items