diff --git a/InnerDetector/InDetEventCnv/InDetEventTPCnv/InDetEventTPCnv/ATLAS_CHECK_THREAD_SAFETY b/InnerDetector/InDetEventCnv/InDetEventTPCnv/InDetEventTPCnv/ATLAS_CHECK_THREAD_SAFETY
new file mode 100644
index 0000000000000000000000000000000000000000..7f11f0adae2be1ad6d6520292d557cba188467e3
--- /dev/null
+++ b/InnerDetector/InDetEventCnv/InDetEventTPCnv/InDetEventTPCnv/ATLAS_CHECK_THREAD_SAFETY
@@ -0,0 +1 @@
+InnerDetector/InDetEventCnv/InDetEventTPCnv