diff --git a/src/app-layer-register.c b/src/app-layer-register.c
index 2f21709e3b..52bb46602d 100644
--- a/src/app-layer-register.c
+++ b/src/app-layer-register.c
@@ -162,6 +162,11 @@ int AppLayerRegisterParser(const struct AppLayerParser *p, AppProto alproto)
                 p->StateGetFiles);
     }
 
+    if (p->GetTxIterator) {
+        AppLayerParserRegisterGetTxIterator(p->ip_proto, alproto,
+                p->GetTxIterator);
+    }
+
     return 0;
 }
 
diff --git a/src/app-layer-register.h b/src/app-layer-register.h
index 872dca7a92..c7bb7d4e39 100644
--- a/src/app-layer-register.h
+++ b/src/app-layer-register.h
@@ -65,6 +65,10 @@ typedef struct AppLayerParser {
     int (*SetTxMpmIDs)(void *tx, uint64_t);
 
     FileContainer *(*StateGetFiles)(void *, uint8_t);
+
+    AppLayerGetTxIterTuple (*GetTxIterator)(const uint8_t ipproto,
+            const AppProto alproto, void *alstate, uint64_t min_tx_id,
+            uint64_t max_tx_id, AppLayerGetTxIterState *istate);
 } AppLayerParser;
 
 /**