diff --git a/src/main/java/tconstruct/smeltery/logic/SmelteryDrainLogic.java b/src/main/java/tconstruct/smeltery/logic/SmelteryDrainLogic.java
index 7361f6f26a8..0c5d80c2f8f 100644
--- a/src/main/java/tconstruct/smeltery/logic/SmelteryDrainLogic.java
+++ b/src/main/java/tconstruct/smeltery/logic/SmelteryDrainLogic.java
@@ -72,6 +72,9 @@ public boolean canDrain (ForgeDirection from, Fluid fluid)
     {
         // Check that the drain is coming from the from the front of the block
         // and that the fluid to be drained is in the smeltery.
+        if(!hasValidMaster())
+            return false;
+            
         boolean containsFluid = fluid == null;
         if (fluid != null)
         {