diff --git a/src/suricata.c b/src/suricata.c
index 7db868e42b..99611cb4de 100644
--- a/src/suricata.c
+++ b/src/suricata.c
@@ -2376,6 +2376,7 @@ static int PostConfLoadedSetup(SCInstance *suri)
     SCProtoNameInit();
 
     TagInitCtx();
+    PacketAlertTagInit();
     ThresholdInit();
     HostBitInitCtx();
     IPPairBitInitCtx();