Allow any simple term and gard against non-terms

1 files changed, 2 insertions, 2 deletions

diff --git a/container-search/src/main/java/com/yahoo/prelude/query/SameElementItem.java b/container-search/src/main/java/com/yahoo/prelude/query/SameElementItem.java
index d2c19339298..11796b6c97c 100644
--- a/container-search/src/main/java/com/yahoo/prelude/query/SameElementItem.java
+++ b/container-search/src/main/java/com/yahoo/prelude/query/SameElementItem.java
@@ -58,8 +58,8 @@ public class SameElementItem extends NonReducibleCompositeItem {
 
     @Override
     public Optional<Item> extractSingleChild() {
-        if (getItemCount() == 1) {
-            WordItem child = (WordItem) getItem(0);
+        if (getItemCount() == 1 && getItem(0) instanceof SimpleIndexedItem) {
+            SimpleIndexedItem child = (SimpleIndexedItem)getItem(0);
             child.setIndexName(getFieldName() + "." + child.getIndexName());
             return Optional.of(child);
         }