diff --git a/glibc-2.X-drd.supp b/glibc-2.X-drd.supp
index e10363c..2bf6b05 100644
--- a/glibc-2.X-drd.supp
+++ b/glibc-2.X-drd.supp
@@ -78,6 +78,11 @@
    fun:__free_tcb
 }
 {
+   drd-libpthread-__nptl_deallocate_tsd
+   drd:ConflictingAccess
+   fun:__nptl_deallocate_tsd
+}
+{
    drd-libpthread-pthread_detach
    drd:ConflictingAccess
    fun:pthread_detach