diff --git a/Nautilus/Handlers/PDAHandler.cs b/Nautilus/Handlers/PDAHandler.cs
index 10ae23c8..d8a9d524 100644
--- a/Nautilus/Handlers/PDAHandler.cs
+++ b/Nautilus/Handlers/PDAHandler.cs
@@ -221,7 +221,7 @@ public static void AddEncyclopediaEntry(PDAEncyclopedia.EntryData entry)
 
         PDAEncyclopediaPatcher.CustomEntryData[entry.key] = entry;
         
-        if (uGUI.isMainLevel)
+        if(PDAEncyclopedia.initialized)
             PDAEncyclopediaPatcher.InitializePostfix();
     }
 
@@ -270,4 +270,4 @@ public static void AddEncyclopediaEntry(string key, string path, string title, s
 
         AddEncyclopediaEntry(encyEntryData);
     }
-}
\ No newline at end of file
+}