diff --git a/SabreTools.DatFiles/DatFile.Splitting.cs b/SabreTools.DatFiles/DatFile.Splitting.cs
index 2cc9f8bb..9242565f 100644
--- a/SabreTools.DatFiles/DatFile.Splitting.cs
+++ b/SabreTools.DatFiles/DatFile.Splitting.cs
@@ -79,12 +79,14 @@ namespace SabreTools.DatFiles
         /// <summary>
         /// Use romof tags to remove bios items from children
         /// </summary>
-        /// <param name="bios">True if only child Bios sets are touched, false for non-bios sets</param>
         /// <remarks>Assumes items are bucketed by <see cref="ItemKey.Machine"/></remarks>
-        public void RemoveItemsFromRomOfChild(bool bios)
+        public void RemoveItemsFromRomOfChild()
         {
-            RemoveItemsFromRomOfChildImpl(bios);
-            RemoveItemsFromRomOfChildImplDB(bios);
+            // TODO: Figure out why the bios flag is needed
+            RemoveItemsFromRomOfChildImpl(false);
+            RemoveItemsFromRomOfChildImplDB(false);
+            RemoveItemsFromRomOfChildImpl(true);
+            RemoveItemsFromRomOfChildImplDB(true);
         }
 
         /// <summary>
diff --git a/SabreTools.DatTools/MergeSplit.cs b/SabreTools.DatTools/MergeSplit.cs
index c8525568..87c5ad8e 100644
--- a/SabreTools.DatTools/MergeSplit.cs
+++ b/SabreTools.DatTools/MergeSplit.cs
@@ -127,8 +127,7 @@ namespace SabreTools.DatTools
             datFile.AddItemsFromChildren(true, false);
 
             // Now that we have looped through the cloneof tags, we loop through the romof tags
-            datFile.RemoveItemsFromRomOfChild(false);
-            datFile.RemoveItemsFromRomOfChild(true);
+            datFile.RemoveItemsFromRomOfChild();
 
             // Finally, remove the romof and cloneof tags so it's not picked up by the manager
             datFile.RemoveMachineRelationshipTags();
@@ -172,8 +171,7 @@ namespace SabreTools.DatTools
             datFile.AddItemsFromChildren(true, true);
 
             // Now that we have looped through the cloneof tags, we loop through the romof tags
-            datFile.RemoveItemsFromRomOfChild(false);
-            datFile.RemoveItemsFromRomOfChild(true);
+            datFile.RemoveItemsFromRomOfChild();
 
             // Finally, remove the romof and cloneof tags so it's not picked up by the manager
             datFile.RemoveMachineRelationshipTags();
@@ -194,8 +192,7 @@ namespace SabreTools.DatTools
             datFile.AddItemsFromCloneOfParent();
 
             // Now that we have looped through the cloneof tags, we loop through the romof tags
-            datFile.RemoveItemsFromRomOfChild(false);
-            datFile.RemoveItemsFromRomOfChild(true);
+            datFile.RemoveItemsFromRomOfChild();
 
             // Finally, remove the romof and cloneof tags so it's not picked up by the manager
             datFile.RemoveMachineRelationshipTags();
@@ -216,8 +213,7 @@ namespace SabreTools.DatTools
             datFile.RemoveItemsFromCloneOfChild();
 
             // Now that we have looped through the cloneof tags, we loop through the romof tags
-            datFile.RemoveItemsFromRomOfChild(false);
-            datFile.RemoveItemsFromRomOfChild(true);
+            datFile.RemoveItemsFromRomOfChild();
 
             // Finally, remove the romof and cloneof tags so it's not picked up by the manager
             datFile.RemoveMachineRelationshipTags();