diff --git a/lib/utils/config.ts b/lib/utils/config.ts
index 312a9179..1eabfa76 100644
--- a/lib/utils/config.ts
+++ b/lib/utils/config.ts
@@ -68,7 +68,7 @@ export async function generateBaseConfig(
 	};
 
 	const config = (await getBalenaSdk().models.os.getConfig(
-		application.app_name,
+		application.slug,
 		options,
 	)) as ImgConfig & { apiKey?: string };
 	// os.getConfig always returns a config for an app