diff --git a/packages/preset-esm/templates/tsconfig.build.yaml b/packages/preset-esm/templates/tsconfig.build.yaml
index ff444be..6e68a84 100644
--- a/packages/preset-esm/templates/tsconfig.build.yaml
+++ b/packages/preset-esm/templates/tsconfig.build.yaml
@@ -4,4 +4,4 @@ include:
 compilerOptions:
   noEmit: false
   composite: true
-  rootDir: source
+  rootDir: '{source}'