diff --git a/src/main/java/ru/dbotthepony/mc/otm/block/entity/BlockEntityMatteryPoweredMachine.java b/src/main/java/ru/dbotthepony/mc/otm/block/entity/BlockEntityMatteryPoweredMachine.java
index 81726b6c3..a8838c449 100644
--- a/src/main/java/ru/dbotthepony/mc/otm/block/entity/BlockEntityMatteryPoweredMachine.java
+++ b/src/main/java/ru/dbotthepony/mc/otm/block/entity/BlockEntityMatteryPoweredMachine.java
@@ -26,6 +26,7 @@ import java.util.Optional;
 abstract public class BlockEntityMatteryPoweredMachine extends BlockEntityMatteryMachine {
 	protected MatteryMachineEnergyStorage energy = null;
 	protected LazyOptional<MatteryMachineEnergyStorage> energy_resolver = null;
+	private boolean valid = true;
 
 	public SimpleSerializableContainer battery_container = new SimpleSerializableContainer(1);
 
@@ -81,9 +82,21 @@ abstract public class BlockEntityMatteryPoweredMachine extends BlockEntityMatter
 		super(p_155228_, p_155229_, p_155230_);
 	}
 
+	@Override
+	public void invalidateCaps() {
+		super.invalidateCaps();
+		valid = false;
+	}
+
+	@Override
+	public void reviveCaps() {
+		super.reviveCaps();
+		valid = true;
+	}
+
 	@Nonnull
 	public <T> LazyOptional<T> getCapability(@Nonnull Capability<T> cap, @Nullable Direction side) {
-		if ((cap == MatteryCapability.ENERGY || cap == CapabilityEnergy.ENERGY) && energy_resolver != null) {
+		if (valid && (cap == MatteryCapability.ENERGY || cap == CapabilityEnergy.ENERGY) && energy_resolver != null) {
 			return energy_resolver.cast();
 		}