diff --git a/README.md b/README.md
index 765d20d..14df053 100644
--- a/README.md
+++ b/README.md
@@ -19,4 +19,6 @@ To add a new subproject:
 - edit `.mrconfig` and add a new section for the project (base it on the
   existing sections for the existing subprojects)
 - add a new .spec.in file for the project in rpm/$PROJECT.spec.in
+- edit `Makefile` and add the subproject name to the COMPONENTS variable right
+  at the beginning of the file.
 - that's all
--
libgit2 0.21.2