diff --git a/patches/server/Optimize-Hoppers.patch b/patches/server/Optimize-Hoppers.patch
index 0198d1f7cf..253c7dadef 100644
--- a/patches/server/Optimize-Hoppers.patch
+++ b/patches/server/Optimize-Hoppers.patch
@@ -129,6 +129,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        ItemStack movedItem = origItemStack;
 +        final int originalItemCount = origItemStack.getCount();
 +        final int movedItemCount = Math.min(level.spigotConfig.hopperAmount, originalItemCount);
++        container.setChanged(); // original logic always marks source inv as changed even if no move happens.
 +        movedItem.setCount(movedItemCount);
 +
 +        if (!skipPullModeEventFire) {