diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/capability/Ext.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/capability/Ext.kt
index b0c7f8844..23ef14317 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/capability/Ext.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/capability/Ext.kt
@@ -106,12 +106,18 @@ val ICapabilityProvider.matteryEnergy: IMatteryEnergyStorage? get() {
 /**
  * Shortcut for getting [LazyOptional] with [IEnergyStorage], including wrappers for it
  */
-fun ICapabilityProvider.getEnergySided(side: Direction? = null): LazyOptional<IEnergyStorage> {
+fun ICapabilityProvider.getEnergySided(side: Direction? = null): LazyOptional<out IEnergyStorage> {
+	val mattery = getCapability(MatteryCapability.ENERGY, side)
+
+	if (mattery.isPresent) {
+		return mattery
+	}
+
 	if (isMekanismLoaded) {
 		val mekanismEnergy = getMekanismEnergySided(side)
 
 		if (mekanismEnergy.isPresent) {
-			return mekanismEnergy.cast()
+			return mekanismEnergy
 		}
 	}
 
@@ -121,7 +127,13 @@ fun ICapabilityProvider.getEnergySided(side: Direction? = null): LazyOptional<IE
 /**
  * Shortcut for getting [LazyOptional] with [IMatteryEnergyStorage], including wrappers for it
  */
-fun ICapabilityProvider.getMatteryEnergySided(side: Direction? = null): LazyOptional<IMatteryEnergyStorage> {
+fun ICapabilityProvider.getMatteryEnergySided(side: Direction? = null): LazyOptional<out IMatteryEnergyStorage> {
+	val mattery = getCapability(MatteryCapability.ENERGY, side)
+
+	if (mattery.isPresent) {
+		return mattery
+	}
+
 	if (isMekanismLoaded) {
 		val mekanismEnergy = getMekanismEnergySided(side)
 
@@ -130,7 +142,7 @@ fun ICapabilityProvider.getMatteryEnergySided(side: Direction? = null): LazyOpti
 		}
 	}
 
-	return getCapability(MatteryCapability.ENERGY, side)
+	return LazyOptional.empty()
 }
 
 fun Player.extendedItemIterator(): MutableIterator<ItemStack> {