diff --git a/scripts/valgrind.supp b/scripts/valgrind.supp
index b161e09fa01..330ec51fefd 100644
--- a/scripts/valgrind.supp
+++ b/scripts/valgrind.supp
@@ -18,7 +18,7 @@
 {
    POSIX soc no cpu cleanup
    Memcheck:Leak
-   match-leak-kinds: reachable
+   match-leak-kinds: reachable,possible
    ...
    fun:posix_boot_cpu
    ...