diff --git a/prof.supp b/prof.supp
index c2f7f59c..403f8ef6 100644
--- a/prof.supp
+++ b/prof.supp
@@ -2703,3 +2703,42 @@
    fun:calloc
    fun:_dl_allocate_tls
 }
+
+# pthread TLS allocation in stabber server threads
+{
+   pthread_create_tls_stabber
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:calloc
+   ...
+   fun:allocate_dtv
+   fun:_dl_allocate_tls
+   fun:allocate_stack
+   fun:pthread_create*
+   fun:server_run
+}
+
+# expect/tcl library allocations
+{
+   tcl_alloc_expect
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc
+   ...
+   fun:TclpAlloc
+   fun:Tcl_Alloc
+   ...
+   fun:exp_expectl
+}
+
+{
+   exp_printify
+   Memcheck:Leak
+   match-leak-kinds: possible
+   fun:malloc
+   ...
+   fun:exp_printify
+   ...
+   fun:exp_expectl
+}
+