diff --git a/zs.docs/StarSystem/Stronghold Tau.md b/zs.docs/StarSystem/Stronghold Tau.md
index a6f4ded..3835bc8 100644
--- a/zs.docs/StarSystem/Stronghold Tau.md	
+++ b/zs.docs/StarSystem/Stronghold Tau.md	
@@ -3,6 +3,6 @@ category: StarSystem
 isHomeworldSystem: true
 higherCreditYield: true
 occupationBuff: +50 Starting Flux
-systemMastery: ""
+systemMastery: "[[Turret Damage]]"
 connectedSystems: 
 ---