diff --git a/Plugin/KethaneData.cs b/Plugin/KethaneData.cs
index 9a674d4..527c351 100644
--- a/Plugin/KethaneData.cs
+++ b/Plugin/KethaneData.cs
@@ -34,11 +34,6 @@ public static KethaneData Current
         private Dictionary<string, ConfigNode> generatorNodes = new Dictionary<string, ConfigNode>();
         private Dictionary<string, IResourceGenerator> generators = new Dictionary<string, IResourceGenerator>();
 
-        public ICellResource GetDepositUnder(string resourceName, Vessel vessel)
-        {
-            return GetCellDeposit(resourceName, vessel.mainBody, MapOverlay.GetCellUnder(vessel.mainBody, vessel.transform.position));
-        }
-
         public ICellResource GetCellDeposit(string resourceName, CelestialBody body, Cell cell)
         {
             if (resourceName == null || body == null || !PlanetDeposits.ContainsKey(resourceName) || !PlanetDeposits[resourceName].ContainsKey(body.name)) { return null; }
diff --git a/Plugin/PartModules/KethaneExtractor.cs b/Plugin/PartModules/KethaneExtractor.cs
index ba30f60..d847ce7 100644
--- a/Plugin/PartModules/KethaneExtractor.cs
+++ b/Plugin/PartModules/KethaneExtractor.cs
@@ -182,7 +182,7 @@ public void Update()
                 {
                     if (animator.CurrentState == ExtractorState.Deployed)
                     {
-                        emitter.Emit = hit && KethaneData.Current.GetDepositUnder("Kethane", this.vessel) != null;
+                        emitter.Emit = hit && GetDepositUnder("Kethane") != null;
                     }
                     else
                     {
@@ -209,7 +209,7 @@ public override void OnFixedUpdate()
 
             foreach (var resource in resources)
             {
-                var deposit = KethaneData.Current.GetDepositUnder(resource.Name, this.vessel);
+                var deposit = GetDepositUnder(resource.Name);
                 if (deposit == null) { continue; }
 
                 double amount = TimeWarp.fixedDeltaTime * resource.Rate * energyRatio;
@@ -218,6 +218,11 @@ public override void OnFixedUpdate()
             }
         }
 
+        private ICellResource GetDepositUnder(string resourceName)
+        {
+            return KethaneData.Current.GetCellDeposit(resourceName, this.vessel.mainBody, MapOverlay.GetCellUnder(this.vessel.mainBody, this.vessel.transform.position));
+        }
+
         private bool raycastGround()
         {
             RaycastHit hitInfo;