diff --git a/init/service.cpp b/init/service.cpp
index d3c9f92..dee0c3d 100644
--- a/init/service.cpp
+++ b/init/service.cpp
@@ -82,7 +82,11 @@
         free(new_con);
     }
     if (rc == 0 && computed_context == mycon.get()) {
-        return Error() << "Service does not have an SELinux domain defined";
+        return Error() << "File " << service_path << "(labeled \"" << filecon.get()
+                       << "\") has incorrect label or no domain transition from " << mycon.get()
+                       << " to another SELinux domain defined. Have you configured your "
+                          "service correctly? https://source.android.com/security/selinux/"
+                          "device-policy#label_new_services_and_address_denials";
     }
     if (rc < 0) {
         return Error() << "Could not get process context";