diff --git a/packages/web_ui/src/components/BaseConfigTree.tsx b/packages/web_ui/src/components/BaseConfigTree.tsx
index 710aead8..606a6329 100644
--- a/packages/web_ui/src/components/BaseConfigTree.tsx
+++ b/packages/web_ui/src/components/BaseConfigTree.tsx
@@ -44,7 +44,7 @@ function renderInput(inputComponents: Record<string, InputComponent>, def: lib.F
 	}
 	if (def.type === "string") {
 		if (def.credential) {
-			return <Input.Password autoComplete={def.autoComplete} disabled={readonly} />;
+			return <Input.Password autoComplete={def.autoComplete ?? "new-password"} disabled={readonly} />;
 		}
 		return <Input autoComplete={def.autoComplete} disabled={readonly} />;
 	}