diff --git a/src/tm-threads.c b/src/tm-threads.c
index 7264c84cbd..51d82c78ff 100644
--- a/src/tm-threads.c
+++ b/src/tm-threads.c
@@ -804,6 +804,7 @@ void TmSlotSetFuncAppend(ThreadVars *tv, TmModule *tm, void *data)
     if (slot == NULL)
         return;
     memset(slot, 0, sizeof(TmSlot));
+    slot->tv = tv;
     slot->SlotThreadInit = tm->ThreadInit;
     slot->slot_initdata = data;
     slot->SlotFunc = tm->Func;
diff --git a/src/tm-threads.h b/src/tm-threads.h
index 2aa747debc..43a921156b 100644
--- a/src/tm-threads.h
+++ b/src/tm-threads.h
@@ -30,6 +30,9 @@
 #include "tm-modules.h"
 
 typedef struct TmSlot_ {
+    /* the TV holding this slot */
+    ThreadVars *tv;
+
     /* function pointers */
     TmEcode (*SlotFunc)(ThreadVars *, Packet *, void *, PacketQueue *,
                         PacketQueue *);