diff --git a/lib/pkgcraft/dep/pkg.rb b/lib/pkgcraft/dep/pkg.rb
index f540bed..e21acc7 100644
--- a/lib/pkgcraft/dep/pkg.rb
+++ b/lib/pkgcraft/dep/pkg.rb
@@ -164,7 +164,8 @@ def pvr
       end
 
       def cpn
-        C.pkgcraft_dep_cpn(self)
+        ptr = C.pkgcraft_dep_cpn(self)
+        Cpn.send(:from_ptr, ptr)
       end
 
       def cpv