diff --git a/lib/icinga/service.ti b/lib/icinga/service.ti
index 59684d110..373be49f1 100644
--- a/lib/icinga/service.ti
+++ b/lib/icinga/service.ti
@@ -25,6 +25,7 @@ class Service : Checkable < ServiceNameComposer
 	load_after ApiListener;
 	load_after Endpoint;
 	load_after Host;
+	load_after HostGroup;
 	load_after Zone;
 
 	[config, no_user_modify, required, signal_with_old_value] array(name(ServiceGroup)) groups {