diff --git a/src/WeekendBonus.cpp b/src/WeekendBonus.cpp
index 1224924..9dee76b 100644
--- a/src/WeekendBonus.cpp
+++ b/src/WeekendBonus.cpp
@@ -59,7 +59,7 @@ class WeekendBonusWorld : WorldScript
                 SetWorldRates();
         }
 
-        void OnUpdate(uint32 diff) override
+        void OnUpdate(uint32 /*diff*/) override
         {
             HandleWeekendBonuses();
         }