diff --git a/recipes/GroupIngredient.java b/recipes/GroupIngredient.java
index 20f84d822..569688b8a 100644
--- a/recipes/GroupIngredient.java
+++ b/recipes/GroupIngredient.java
@@ -65,7 +65,16 @@ public class GroupIngredient implements IIngredient
 		try
 		{
 			for (IIngredient i : ingredients)
-				out.addAll( Arrays.asList( i.getItemStackSet() ) );
+			{
+				try
+				{
+					out.addAll( Arrays.asList( i.getItemStackSet() ) );
+				}
+				catch (MissingIngredientError mir)
+				{
+					// oh well this is a group!
+				}
+			}
 		}
 		finally
 		{