diff --git a/ui/src/assets/schema/provider/filebacked-http-filters.schema.json b/ui/src/assets/schema/provider/filebacked-http-filters.schema.json
index 20cf1fef0..f9a616084 100644
--- a/ui/src/assets/schema/provider/filebacked-http-filters.schema.json
+++ b/ui/src/assets/schema/provider/filebacked-http-filters.schema.json
@@ -52,7 +52,7 @@
                             "title": "label.certificate-file",
                             "description": "tooltip.certificate-file",
                             "type": "string",
-                            "widget": "textarea",
+                            "widget": "textline",
                             "default": ""
                         }
                     },