diff --git a/src/app-layer-register.c b/src/app-layer-register.c
index 4bbaea2d8c..3fd73c46d7 100644
--- a/src/app-layer-register.c
+++ b/src/app-layer-register.c
@@ -171,6 +171,11 @@ int AppLayerRegisterParser(const struct AppLayerParser *p, AppProto alproto)
                 p->GetTxIterator);
     }
 
+    if (p->SetTxDetectFlags && p->GetTxDetectFlags) {
+        AppLayerParserRegisterDetectFlagsFuncs(p->ip_proto, alproto,
+                p->GetTxDetectFlags, p->SetTxDetectFlags);
+    }
+
     return 0;
 }
 
diff --git a/src/app-layer-register.h b/src/app-layer-register.h
index 70340edd12..fbba2f3303 100644
--- a/src/app-layer-register.h
+++ b/src/app-layer-register.h
@@ -71,6 +71,9 @@ typedef struct AppLayerParser {
     AppLayerGetTxIterTuple (*GetTxIterator)(const uint8_t ipproto,
             const AppProto alproto, void *alstate, uint64_t min_tx_id,
             uint64_t max_tx_id, AppLayerGetTxIterState *istate);
+
+    void (*SetTxDetectFlags)(void *, uint8_t, uint64_t);
+    uint64_t (*GetTxDetectFlags)(void *, uint8_t);
 } AppLayerParser;
 
 /**