diff --git a/src/main/java/gregapi/tileentity/inventories/MultiTileEntityMassStorage.java b/src/main/java/gregapi/tileentity/inventories/MultiTileEntityMassStorage.java
index 3a05e95a3..c220dbde4 100644
--- a/src/main/java/gregapi/tileentity/inventories/MultiTileEntityMassStorage.java
+++ b/src/main/java/gregapi/tileentity/inventories/MultiTileEntityMassStorage.java
@@ -31,6 +31,7 @@
 import gregapi.code.ItemStackSet;
 import gregapi.data.LH;
 import gregapi.data.LH.Chat;
+import gregapi.data.MD;
 import gregapi.data.OP;
 import gregapi.data.TD;
 import gregapi.network.INetworkHandler;
@@ -631,7 +632,7 @@ public long getUnitAmount(OreDictPrefix aPrefix) {
 	
 	public long getUnitAmount(ItemStack aStack) {
 		OreDictItemData mData = OM.anydata_(slot(1)), aData = OM.anydata_(aStack);
-		if (mData != null && aData != null && mData.validData() && aData.validData() && !mData.mBlackListed && !aData.mBlackListed && mData.mMaterial.mMaterial == aData.mMaterial.mMaterial && mPartialUnits < getUnitAmount(mData.mPrefix)) {
+		if (mData != null && aData != null && mData.validData() && aData.validData() && mData.mMaterial.mMaterial == aData.mMaterial.mMaterial && (!mData.mBlackListed || MD.MC.owns(slot(1))) && mPartialUnits < getUnitAmount(mData.mPrefix)) {
 			if (mData.mPrefix.contains(TD.Prefix.DUST_BASED)) {
 				return aData.mPrefix.contains(TD.Prefix.DUST_BASED) ? aData.mPrefix.mAmount : 0;
 			}