diff --git a/build.sc b/build.mill
similarity index 99%
rename from build.sc
rename to build.mill
index bd7fd0db4..978884877 100644
--- a/build.sc
+++ b/build.mill
@@ -1,3 +1,4 @@
+package build
 // plugins
 import $ivy.`de.tototec::de.tobiasroeser.mill.vcs.version::0.4.0`
 import $ivy.`com.github.lolgab::mill-mima::0.1.1`