diff --git a/TouchyTickets/Attractions/Attraction.cs b/TouchyTickets/Attractions/Attraction.cs
index d698911..9e56564 100644
--- a/TouchyTickets/Attractions/Attraction.cs
+++ b/TouchyTickets/Attractions/Attraction.cs
@@ -59,9 +59,9 @@ namespace TouchyTickets.Attractions {
             var genRate = this.Type.GetGenerationRate();
 
             // apply attraction modifiers
-            var mod = 0D;
+            var mod = 1D;
             foreach (var modifier in this.Modifiers)
-                mod += Math.Pow(modifier.Modifier.Multiplier, modifier.Amount);
+                mod += Math.Pow(modifier.Modifier.Multiplier, modifier.Amount) - 1;
             genRate *= mod;
 
             // apply star upgrades