diff --git a/source/game/items/StarCodexItem.cpp b/source/game/items/StarCodexItem.cpp
index aaaca3b..a23f4d7 100644
--- a/source/game/items/StarCodexItem.cpp
+++ b/source/game/items/StarCodexItem.cpp
@@ -33,6 +33,7 @@ void CodexItem::fireTriggered() {
     if (codexLearned) {
       player->queueUIMessage(Root::singleton().assets()->json("/codex.config:messages.learned").toString());
     } else {
+      player->codexes()->markCodexUnread(m_codexId);
       player->queueUIMessage(Root::singleton().assets()->json("/codex.config:messages.alreadyKnown").toString());
     }
   }