diff --git a/lib/core/facets/range.rb b/lib/core/facets/range.rb
index fe187b9c..968ebdc9 100644
--- a/lib/core/facets/range.rb
+++ b/lib/core/facets/range.rb
@@ -1,5 +1,5 @@
 require_relative 'range/combine.rb'
-require_relative 'range/overlap.rb'
+#require_relative 'range/intersection.rb' # too new
 #require_relative 'range/quantile.rb'     # uncommon
 #require_relative 'range/op_add.rb'       # too new
 #require_relative 'range/op_sub.rb'       # too new