diff --git a/repositories.manifest b/repositories.manifest
index 0405750..54e42c5 100644
--- a/repositories.manifest
+++ b/repositories.manifest
@@ -6,6 +6,6 @@ summary: libcopy-test project repository
 #location: https://pkg.cppget.org/1/stable
 #trust: ...
 
-#:
-#role: prerequisite
-#location: https://git.build2.org/hello/libhello.git
+:
+role: prerequisite
+location: ../libarc-validate.git#HEAD