diff --git a/vane-core/src/main/java/org/oddlama/vane/core/item/ExistingItemConverter.java b/vane-core/src/main/java/org/oddlama/vane/core/item/ExistingItemConverter.java
index 177f5e8d..d3d196d4 100644
--- a/vane-core/src/main/java/org/oddlama/vane/core/item/ExistingItemConverter.java
+++ b/vane-core/src/main/java/org/oddlama/vane/core/item/ExistingItemConverter.java
@@ -28,6 +28,9 @@ private CustomItem from_old_item(final ItemStack item_stack) {
 
         // If lookups fail, we return null and nothing will be done.
         String new_item_key = null;
+		if (meta.getCustomModelDataComponent().getFloats().isEmpty()) {
+			return null;
+		}
         switch (meta.getCustomModelData()) {
             case 7758190:
                 new_item_key = "vane_trifles:wooden_sickle";