diff --git a/modules/mesh-build-go/buildstep/doc.go b/modules/mesh-build-go/buildstep/doc.go
new file mode 100644
index 000000000..5d5470d20
--- /dev/null
+++ b/modules/mesh-build-go/buildstep/doc.go
@@ -0,0 +1,3 @@
+// Package buildstep is kept empty as a bridge: the running pre-G indexer publishes mesh-catalog's packages only while
+// every package directory it published before is in the tree. It goes once G's indexer runs.
+package buildstep