diff --git a/src/rtree.js b/src/rtree.js
index 11fd356..79ea167 100644
--- a/src/rtree.js
+++ b/src/rtree.js
@@ -131,7 +131,7 @@ var RTree = function(width){
 				  }
 					i -= 1;
 				}
-			} else if("nodes" in ret_obj) { // We are unsplitting
+			} else if("nodes" in ret_obj && ret_obj.nodes.length > 0) { // We are unsplitting
 				tree.nodes.splice(i+1, 1); // Remove unsplit node
 				// ret_obj.nodes contains a list of elements removed from the tree so far
 				if(tree.nodes.length > 0)
@@ -708,4 +708,4 @@ RTree.Rectangle.make_MBR = function(nodes, rect) {
 		RTree.Rectangle.expand_rectangle(rect, nodes[i]);
 		
 	return(rect);
-};
\ No newline at end of file
+};