diff --git a/ci/tsan b/ci/tsan
index 657d426..2957406 100644
--- a/ci/tsan
+++ b/ci/tsan
@@ -9,6 +9,9 @@ race:arc*Weak*drop
 # rust runtime logic.
 race:std*mpsc_queue
 
+# Some test runtime races. Allocation should be race free
+race:alloc::alloc
+
 # Not sure why this is warning, but it is in the test harness and not the library.
 race:TestEvent*clone
 race:test::run_tests_console::*closure