diff --git a/src/main/java/de/ellpeck/actuallyadditions/mod/tile/TileEntityItemViewer.java b/src/main/java/de/ellpeck/actuallyadditions/mod/tile/TileEntityItemViewer.java
index d40350b69..92c0f933c 100644
--- a/src/main/java/de/ellpeck/actuallyadditions/mod/tile/TileEntityItemViewer.java
+++ b/src/main/java/de/ellpeck/actuallyadditions/mod/tile/TileEntityItemViewer.java
@@ -78,7 +78,7 @@ public class TileEntityItemViewer extends TileEntityInventoryBase{
     public boolean canExtractItem(int index, ItemStack stack, EnumFacing direction){
         SpecificItemHandlerInfo handler = this.getSwitchedIndexHandler(index);
         if(handler != null){
-            if(handler.relayInQuestion.isWhitelisted(stack)){
+            if(this.isWhitelisted(handler, stack)){
                 if(ItemStack.areItemsEqual(handler.handler.getStackInSlot(handler.switchedIndex), stack)){
                     ItemStack gaveBack = handler.handler.extractItem(handler.switchedIndex, stack.stackSize, true);
                     return gaveBack != null;
@@ -88,11 +88,15 @@ public class TileEntityItemViewer extends TileEntityInventoryBase{
         return false;
     }
 
+    private boolean isWhitelisted(SpecificItemHandlerInfo handler, ItemStack stack){
+     return handler.relayInQuestion.isWhitelisted(stack) && this.getConnectedRelay().isWhitelisted(stack);
+    }
+
     @Override
     public boolean isItemValidForSlot(int index, ItemStack stack){
         SpecificItemHandlerInfo handler = this.getSwitchedIndexHandler(index);
         if(handler != null){
-            if(handler.relayInQuestion.isWhitelisted(stack)){
+            if(this.isWhitelisted(handler, stack)){
                 ItemStack gaveBack = handler.handler.insertItem(handler.switchedIndex, stack, true);
                 return !ItemStack.areItemStacksEqual(gaveBack, stack);
             }
diff --git a/src/main/resources/assets/actuallyadditions/lang/en_US.lang b/src/main/resources/assets/actuallyadditions/lang/en_US.lang
index 90df78299..318569e38 100644
--- a/src/main/resources/assets/actuallyadditions/lang/en_US.lang
+++ b/src/main/resources/assets/actuallyadditions/lang/en_US.lang
@@ -796,4 +796,4 @@ booklet.actuallyadditions.chapter.spawnerChanger.text.1=The <item>Spawner Change
 
 booklet.actuallyadditions.chapter.itemStorage.name=Laser Relay Item Storage
 booklet.actuallyadditions.chapter.itemStorage.text.1=Additionally to the <item>Laser Relays<r> that transfer RF, there are also <item>Item Laser Relays<r> that are able to transfer items. This works in a <imp>verry different way<r> though. <n>To connect <item>Item Laser Relays<r> together works the same as connecting normal ones, however, you need an <item>Item Interface<r> to be able to interact with them. <n>You can place <imp>any inventories<r> (such as chests and furnaces) next to the <item>Item Laser Relays<r>, but to be pulled out from or inputted into, there needs to be an <item>Item Interface<r> connected
-booklet.actuallyadditions.chapter.itemStorage.text.2=to one of the <item>Item Laser Relay<r>s. To input or output items in the system, just <imp>pipe them into the interface<r>. <n>If you want a way to make a storage system with this, there are also <item>Advanced Item Laser Relays<r>, in which, by <imp>sneak-right-clicking<r> them, you can specify which items are <imp>allowed and disallowed<r> to enter or exit inventories connected to this particular relay. However, its white- and blacklists <imp>won't effect the items transferred by Item Interfaces<r> when placed next to them.
\ No newline at end of file
+booklet.actuallyadditions.chapter.itemStorage.text.2=to one of the <item>Item Laser Relay<r>s. To input or output items in the system, just <imp>pipe them into the interface<r>. <n>If you want a way to make a storage system with this, there are also <item>Advanced Item Laser Relays<r>, in which, by <imp>sneak-right-clicking<r> them, you can specify which items are <imp>allowed and disallowed<r> to enter or exit inventories connected to this particular relay. When placing an advanced relay next to an <item>Item Interface<r>, this effect also applies.
\ No newline at end of file