diff --git a/Content.Server/GameTicking/Rules/XenoborgsRuleSystem.cs b/Content.Server/GameTicking/Rules/XenoborgsRuleSystem.cs
index 21b987eb0e..94b6315a6b 100644
--- a/Content.Server/GameTicking/Rules/XenoborgsRuleSystem.cs
+++ b/Content.Server/GameTicking/Rules/XenoborgsRuleSystem.cs
@@ -93,7 +93,7 @@ public sealed class XenoborgsRuleSystem : GameRuleSystem<XenoborgsRuleComponent>
         var numXenoborgs = GetNumberXenoborgs();
         var numHumans = _mindSystem.GetAliveHumans().Count;
 
-        if ((float)numXenoborgs / numHumans > xenoborgsRuleComponent.XenoborgShuttleCallPercentage)
+        if ((float)numXenoborgs / (numHumans + numXenoborgs) > xenoborgsRuleComponent.XenoborgShuttleCallPercentage)
         {
             foreach (var station in _station.GetStations())
             {