diff --git a/ui/src/assets/schema/provider/filebacked-http-reloading.schema.json b/ui/src/assets/schema/provider/filebacked-http-reloading.schema.json
index de58d5137..6467d6c45 100644
--- a/ui/src/assets/schema/provider/filebacked-http-reloading.schema.json
+++ b/ui/src/assets/schema/provider/filebacked-http-reloading.schema.json
@@ -51,15 +51,16 @@
                 "refreshDelayFactor": {
                     "title": "label.refresh-delay-factor",
                     "description": "tooltip.refresh-delay-factor",
-                    "type": "number",
+                    "type": "string",
                     "widget": {
                         "id": "number",
-                        "step": 0.01
+                        "step": "any"
                     },
                     "placeholder": "label.real-number",
                     "minimum": 0,
                     "maximum": 1,
-                    "default": null
+                    "default": null,
+                    "pattern": "^(0(\\.\\d+)?|1(\\.0+)?)?$"
                 }
             }
         }