diff --git a/Plugin/PartModules/KethaneConverter.cs b/Plugin/PartModules/KethaneConverter.cs
index 94e5df2..67b0847 100644
--- a/Plugin/PartModules/KethaneConverter.cs
+++ b/Plugin/PartModules/KethaneConverter.cs
@@ -1,5 +1,4 @@
-using Kethane.EnumerableExtensions;
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -188,7 +187,7 @@ public override void OnFixedUpdate()
             if (!IsEnabled && !AlwaysActive) { return; }
 
             var rates = outputRates.Select(r => r * -1).Concat(inputRates).Select(r => r * TimeWarp.fixedDeltaTime).ToArray();
-            var ratio = rates.Where(r => !r.Optional).Select(r => Misc.GetConnectedResources(this.part, r.Resource).Select(c => r.Rate > 0 ? c.amount : c.maxAmount - c.amount).DefaultIfEmpty().Max() / Math.Abs(r.Rate)).Prepend(1).Min();
+            var ratio = rates.Where(r => !r.Optional).Select(r => Misc.GetConnectedResources(this.part, r.Resource).Select(c => r.Rate > 0 ? c.amount : c.maxAmount - c.amount).DefaultIfEmpty().Max() / Math.Abs(r.Rate)).Where(r => r < 1).DefaultIfEmpty(1).Min();
 
             var heatsink = this.part.Modules.OfType<HeatSinkAnimator>().SingleOrDefault();
             if (heatsink != null)