diff --git a/lib/predicated/print.rb b/lib/predicated/print.rb
index 7939a1a..62b894c 100644
--- a/lib/predicated/print.rb
+++ b/lib/predicated/print.rb
@@ -6,11 +6,11 @@ def inspect(indent="")
 
     private
     def part_to_s(thing)
-      part_to_str(thing) {|thing| thing.to_s}
+      part_to_str(thing) {|t| t.to_s}
     end
     
     def part_inspect(thing, indent="")
-      part_to_str(thing, indent) {|thing| thing.inspect(indent)}
+      part_to_str(thing, indent) {|t| t.inspect(indent)}
     end
     
     def part_to_str(thing, indent="")
diff --git a/lib/predicated/to/sentence.rb b/lib/predicated/to/sentence.rb
index d6fce29..0580db6 100644
--- a/lib/predicated/to/sentence.rb
+++ b/lib/predicated/to/sentence.rb
@@ -50,7 +50,7 @@ def self.reset_verb_phrases
 
       register_verb_phrase(:include?, "includes", "does not include")
       register_verb_phrase(:is_a?, "is a", "is not a")
-      register_verb_phrase(:nil?, "is nil", "is not nil", accepts_object=false)
+      register_verb_phrase(:nil?, "is nil", "is not nil", false)
       
       nil
     end