kmx.io/rbpkg

diff --git a/lib/rbpkg/repos/libmd.rb b/lib/rbpkg/repos/libmd.rb
index a51c7c4..41f6b11 100644
--- a/lib/rbpkg/repos/libmd.rb
+++ b/lib/rbpkg/repos/libmd.rb
@@ -17,8 +17,7 @@ class Rbpkg::Repos::Libmd < Rbpkg::Repo
   end
 
   def system_package?
-    Rbpkg.os.match?(/BSD/) ||
-      Rbpkg.os.match?(/Darwin/)
+    Rbpkg.os.match?(/BSD/)
   end
 
   repo_register