diff --git a/src/cart/utils/memcheck-cart.supp b/src/cart/utils/memcheck-cart.supp
index 1a616b99ce4..82a5251490c 100644
--- a/src/cart/utils/memcheck-cart.supp
+++ b/src/cart/utils/memcheck-cart.supp
@@ -567,3 +567,8 @@
    write(buf)
    fun:runtime/internal/syscall.Syscall6
 }
+{
+   DAOS-15548
+   Memcheck:Addr1
+   fun:racecallatomic
+}