diff --git a/src/main/java/ru/dbotthepony/mc/otm/capability/IMatteryEnergyStorage.java b/src/main/java/ru/dbotthepony/mc/otm/capability/IMatteryEnergyStorage.java
index bb1e66f94..ff493e73e 100644
--- a/src/main/java/ru/dbotthepony/mc/otm/capability/IMatteryEnergyStorage.java
+++ b/src/main/java/ru/dbotthepony/mc/otm/capability/IMatteryEnergyStorage.java
@@ -5,11 +5,11 @@ import net.minecraftforge.energy.IEnergyStorage;
 import ru.dbotthepony.mc.otm.core.Fraction;
 
 import javax.annotation.ParametersAreNonnullByDefault;
-import java.math.BigDecimal;
 
 // IEnergyStorage for direct compat with Forge Energy
 @MethodsReturnNonnullByDefault
 @ParametersAreNonnullByDefault
+@SuppressWarnings("unused")
 public interface IMatteryEnergyStorage extends IEnergyStorage {
 	// such as cables. This is something that would work only with energy storage
 	Fraction extractEnergyOuter(Fraction howMuch, boolean simulate);
@@ -119,5 +119,5 @@ public interface IMatteryEnergyStorage extends IEnergyStorage {
 	@Override
 	default boolean canReceive() {
 		return receiveEnergyOuter(Fraction.ONE, true).compareTo(Fraction.ZERO) > 0;
-	};
+	}
 }