diff --git a/src/system/libroot/os/thread.c b/src/system/libroot/os/thread.c
index c6e3c8d864..e07424eb1d 100644
--- a/src/system/libroot/os/thread.c
+++ b/src/system/libroot/os/thread.c
@@ -113,6 +113,8 @@ _thread_do_exit_notification(void)
 
 		node = next;
 	}
+
+	tls_set(TLS_ON_EXIT_THREAD_SLOT, NULL);
 }