diff --git a/src/main/java/mod/emt/harkenscythe/block/HSBlockAltar.java b/src/main/java/mod/emt/harkenscythe/block/HSBlockAltar.java
index 1797a9c..5b55b53 100644
--- a/src/main/java/mod/emt/harkenscythe/block/HSBlockAltar.java
+++ b/src/main/java/mod/emt/harkenscythe/block/HSBlockAltar.java
@@ -11,6 +11,7 @@
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.*;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.text.TextComponentTranslation;
 import net.minecraft.world.World;
 
 import mod.emt.harkenscythe.init.HSAdvancements;
@@ -68,6 +69,10 @@ public boolean onBlockActivated(World world, BlockPos pos, IBlockState state, En
                     handleRecipe(world, altar, altarStack, player, altarX, altarY, altarZ);
                     return true;
                 }
+                else
+                {
+                    player.sendStatusMessage(new TextComponentTranslation("message.harkenscythe.altar.invalid_recipe"), true);
+                }
             }
             else if (!heldStack.isEmpty())
             {
@@ -90,9 +95,9 @@ else if (altarStack.getMaxStackSize() > altarStack.getCount() && ItemStack.areIt
                 ItemStack itemStack = altar.getInputStack();
                 if (!itemStack.isEmpty())
                 {
+                    altar.setInputStack(ItemStack.EMPTY);
                     player.addItemStackToInventory(itemStack);
                     player.world.playSound(altarX, altarY, altarZ, getSoundEventFail(), SoundCategory.BLOCKS, 1.0F, 1.5F / (altar.getWorld().rand.nextFloat() * 0.4F + 1.2F), false);
-                    altar.setInputStack(ItemStack.EMPTY);
                     return true;
                 }
             }
diff --git a/src/main/resources/assets/harkenscythe/lang/de_de.lang b/src/main/resources/assets/harkenscythe/lang/de_de.lang
index a240c7e..dcd741d 100644
--- a/src/main/resources/assets/harkenscythe/lang/de_de.lang
+++ b/src/main/resources/assets/harkenscythe/lang/de_de.lang
@@ -152,6 +152,7 @@ effect.harkenscythe.purifying=Spektrale Reinigung
 effect.harkenscythe.water=Spektrales Wasser
 
 # MESSAGES
+message.harkenscythe.altar.invalid_recipe=Dies ist kein gültiges Rezept für ein Altarritual!
 message.harkenscythe.dimensional_mirror.blacklist=Eine magische Kraft verhindert, dass der Spiegel in dieser Dimension funktioniert!
 message.harkenscythe.dimensional_mirror.no_souls=Der Spiegel muss mit Seelen aufgeladen werden, damit er funktioniert!
 message.harkenscythe.dimensional_mirror.no_spawn=Es ist kein Spawnpunkt festgelegt, damit der Spiegel funktioniert!
diff --git a/src/main/resources/assets/harkenscythe/lang/en_us.lang b/src/main/resources/assets/harkenscythe/lang/en_us.lang
index 0457332..e3037e8 100644
--- a/src/main/resources/assets/harkenscythe/lang/en_us.lang
+++ b/src/main/resources/assets/harkenscythe/lang/en_us.lang
@@ -152,6 +152,7 @@ effect.harkenscythe.purifying=Spectral Purifying
 effect.harkenscythe.water=Spectral Water
 
 # MESSAGES
+message.harkenscythe.altar.invalid_recipe=This is not a valid altar ritual recipe!
 message.harkenscythe.dimensional_mirror.blacklist=A magical force prevents the mirror from working in this dimension!
 message.harkenscythe.dimensional_mirror.no_souls=The mirror needs to be recharged with souls to work!
 message.harkenscythe.dimensional_mirror.no_spawn=No spawn point is set for the mirror to work!