diff --git a/Yafc.Model/Model/ModuleFillerParameters.cs b/Yafc.Model/Model/ModuleFillerParameters.cs
index 4176b36e..07813ff4 100644
--- a/Yafc.Model/Model/ModuleFillerParameters.cs
+++ b/Yafc.Model/Model/ModuleFillerParameters.cs
@@ -152,7 +152,7 @@ The payback time is calculated as the module cost divided by the economy gain pe
                     effectivityEconomy = 0f;
                 }
 
-                float bestEconomy = float.NegativeInfinity;
+                float bestEconomy = 0f;
                 Module? usedModule = null;
                 foreach (var module in recipe.modules) {
                     if (module.IsAccessibleWithCurrentMilestones() && entity.CanAcceptModule(module.moduleSpecification)) {