diff --git a/hss/HSS_Tests.ttcn b/hss/HSS_Tests.ttcn
index bd493c4..a5503a7 100644
--- a/hss/HSS_Tests.ttcn
+++ b/hss/HSS_Tests.ttcn
@@ -7,6 +7,7 @@
 
 import from DIAMETER_Types all;
 import from DIAMETER_Templates all;
+import from DIAMETER_ts29_272_Templates all;
 import from DIAMETER_Emulation all;
 
 type record of hexstring SubscriberConfigs;