diff --git a/lucene/spatial/src/java/org/apache/lucene/spatial/prefix/tree/NumberRangePrefixTree.java b/lucene/spatial/src/java/org/apache/lucene/spatial/prefix/tree/NumberRangePrefixTree.java
index 27c1642e1fe..2eebb59dc6b 100644
--- a/lucene/spatial/src/java/org/apache/lucene/spatial/prefix/tree/NumberRangePrefixTree.java
+++ b/lucene/spatial/src/java/org/apache/lucene/spatial/prefix/tree/NumberRangePrefixTree.java
@@ -744,7 +744,7 @@ public abstract class NumberRangePrefixTree extends SpatialPrefixTree {
           return SpatialRelation.INTERSECTS;
       }
       for (;nrMaxLevel < getLevel(); nrMaxLevel++) {
-        if (getValAtLevel(nrMaxLevel + 1) != getNumSubCells(getLVAtLevel(nrMaxLevel-1)) - 1)
+        if (getValAtLevel(nrMaxLevel + 1) != getNumSubCells(getLVAtLevel(nrMaxLevel)) - 1)
           return SpatialRelation.INTERSECTS;
       }
       return SpatialRelation.CONTAINS;