diff --git a/lib/index.js b/lib/index.js
index 5735969..30549d4 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -117,7 +117,7 @@ export default function(options) {
           }
         }
       },
-      'astro:build:start'({ buildConfig }) {
+      'config.build'({ buildConfig }) {
         args.clientRelative = relative(fileURLToPath(buildConfig.server), fileURLToPath(buildConfig.client));
       }
     }