diff --git a/Trigger/TrigT1/TrigT1CaloCalibConditions/TrigT1CaloCalibConditions/ATLAS_CHECK_THREAD_SAFETY b/Trigger/TrigT1/TrigT1CaloCalibConditions/TrigT1CaloCalibConditions/ATLAS_CHECK_THREAD_SAFETY
new file mode 100644
index 0000000000000000000000000000000000000000..1d276eb953f3f1f2841c87df29985854ce16743a
--- /dev/null
+++ b/Trigger/TrigT1/TrigT1CaloCalibConditions/TrigT1CaloCalibConditions/ATLAS_CHECK_THREAD_SAFETY
@@ -0,0 +1 @@
+Trigger/TrigT1/TrigT1CaloCalibConditions