diff --git a/frontend/messages/en.json b/frontend/messages/en.json
index d52ae35f..45b1e915 100644
--- a/frontend/messages/en.json
+++ b/frontend/messages/en.json
@@ -511,6 +511,7 @@
 	"ui_config_disabled_info_description": "The UI configuration is disabled because the application configuration settings are managed through environment variables. Some settings may not be editable.",
 	"logo_from_url_description": "Paste a direct image URL (svg, png, webp). Find icons at {#link href=|https://selfh.st/icons|}Selfh.st Icons{/link} or {#link href=|https://dashboardicons.com|}Dashboard Icons{/link}.",
 	"invalid_url": "Invalid URL",
+	"invalid_uri": "Invalid URI",
 	"require_user_email": "Require Email Address",
 	"require_user_email_description": "Requires users to have an email address. If disabled, the users without an email address won't be able to use features that require an email address.",
 	"view": "View",
diff --git a/frontend/src/routes/settings/admin/apis/api-form.svelte b/frontend/src/routes/settings/admin/apis/api-form.svelte
index 284d230f..773117f0 100644
--- a/frontend/src/routes/settings/admin/apis/api-form.svelte
+++ b/frontend/src/routes/settings/admin/apis/api-form.svelte
@@ -28,7 +28,7 @@
 	const formSchema = z.object({
 		name: z.string().min(1).max(50),
 		resource: z
-			.url()
+			.url({ error: () => m.invalid_uri() })
 			.min(1)
 			.max(350)
 			.refine((value) => !/[#\s]/.test(value), {