diff --git a/src/node/config.ts b/src/node/config.ts
index 8484b76a..24552e1e 100644
--- a/src/node/config.ts
+++ b/src/node/config.ts
@@ -74,7 +74,7 @@ export async function resolveConfig(
   const site = await resolveSiteData(root, userConfig)
   const srcDir = normalizePath(path.resolve(root, userConfig.srcDir || '.'))
   const assetsDir = userConfig.assetsDir
-    ? userConfig.assetsDir.replace(/(^\.?\/|\/$)/g, '')
+    ? userConfig.assetsDir.replace(/^\.?\/|\/$/g, '')
     : 'assets'
   const outDir = userConfig.outDir
     ? normalizePath(path.resolve(root, userConfig.outDir))