diff --git a/lib/veritas/optimizer/function/predicate/enumerable.rb b/lib/veritas/optimizer/function/predicate/enumerable.rb
index bc84b6d..9c0752b 100644
--- a/lib/veritas/optimizer/function/predicate/enumerable.rb
+++ b/lib/veritas/optimizer/function/predicate/enumerable.rb
@@ -49,7 +49,6 @@ def optimize_right
           #
           # @api private
           def optimize_right_range
-            left  = self.left
             right = operation.right
             return unless left.respond_to?(:range)
             right.to_inclusive if right.overlaps?(left.range)