diff --git a/build.sc b/build.mill
similarity index 99%
rename from build.sc
rename to build.mill
index 56b429b4..219dce07 100644
--- a/build.sc
+++ b/build.mill
@@ -1,3 +1,4 @@
+package build
 import mill._
 import scalalib._
 import scalajslib._