diff --git a/src/main/java/de/ellpeck/actuallyadditions/mod/tile/TileEntityDistributorItem.java b/src/main/java/de/ellpeck/actuallyadditions/mod/tile/TileEntityDistributorItem.java
index 7feb56a88..8ea3906ce 100644
--- a/src/main/java/de/ellpeck/actuallyadditions/mod/tile/TileEntityDistributorItem.java
+++ b/src/main/java/de/ellpeck/actuallyadditions/mod/tile/TileEntityDistributorItem.java
@@ -52,6 +52,7 @@ public class TileEntityDistributorItem extends TileEntityInventoryBase{
                                 this.slots.setStackInSlot(0, StackUtil.addStackSize(this.slots.getStackInSlot(0), StackUtil.getStackSize(pulled)));
                             }
                             shouldMarkDirty = true;
+                            break;
                         }
                     }
 
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 43cbb34af..24ef03335 100644
--- a/src/main/java/de/ellpeck/actuallyadditions/mod/tile/TileEntityItemViewer.java
+++ b/src/main/java/de/ellpeck/actuallyadditions/mod/tile/TileEntityItemViewer.java
@@ -133,8 +133,6 @@ public class TileEntityItemViewer extends TileEntityBase{
                             }
                         }
                     }
-                    this.markDirty();
-
                     this.oldNetwork = network;
                     this.lastNetworkChangeAmount = network.changeAmount;
                 }