diff --git a/EDPlayerJournal/BGS/ThargoidKill.cs b/EDPlayerJournal/BGS/ThargoidKill.cs
index 21cc888..5b365a2 100644
--- a/EDPlayerJournal/BGS/ThargoidKill.cs
+++ b/EDPlayerJournal/BGS/ThargoidKill.cs
@@ -25,6 +25,14 @@ public class ThargoidKill : Transaction {
         get { return (ulong)Entries.OfType<FactionKillBondEntry>().Sum(x => (decimal)x.Reward); }
     }
 
+    /// <summary>
+    /// Kiling thargoids contributes to the system wide effort of
+    /// the thargoid war.
+    /// </summary>
+    public override bool SystemContribution {
+        get { return true; }
+    }
+
     public ThargoidKill() { }
 
     public ThargoidKill(FactionKillBondEntry entry) {