diff --git a/Trigger/TrigValidation/TrigP1Test/share/testHLT_timeout.py b/Trigger/TrigValidation/TrigP1Test/share/testHLT_timeout.py
index f67fbe813b4e2365d07560f1e7af7763b5fae377..36ec57e5ef219f667c2ae48c45a2dc44fdaa7d23 100644
--- a/Trigger/TrigValidation/TrigP1Test/share/testHLT_timeout.py
+++ b/Trigger/TrigValidation/TrigP1Test/share/testHLT_timeout.py
@@ -90,7 +90,7 @@ from TrigOutputHandling.TrigOutputHandlingConfig import TriggerEDMSerialiserTool
 serialiser = TriggerEDMSerialiserToolCfg("Serialiser")
 serialiser.addCollectionListToMainResult([
   "xAOD::TrigCompositeContainer_v1#"+hypo.HypoOutputDecisions,
-  "xAOD::TrigCompositeAuxContainer_v2#"+hypo.HypoOutputDecisions+"Aux.decisions",
+  "xAOD::TrigCompositeAuxContainer_v2#"+hypo.HypoOutputDecisions+"Aux.",
 ])
 
 # StreamTag definitions