diff --git a/config/flay.yml b/config/flay.yml
index 43da80e3..79675ede 100644
--- a/config/flay.yml
+++ b/config/flay.yml
@@ -1,3 +1,3 @@
 ---
 threshold: 18
-total_score: 1244
+total_score: 1248
diff --git a/lib/mutant/reporter/cli/format.rb b/lib/mutant/reporter/cli/format.rb
index 49629971..bc967171 100644
--- a/lib/mutant/reporter/cli/format.rb
+++ b/lib/mutant/reporter/cli/format.rb
@@ -41,9 +41,8 @@ module Mutant
           # @return [Boolean]
           #
           # @api private
-          def tty?
-            @tty
-          end
+          alias_method :tty?, :tty
+          public :tty?
 
           %i[puts write].each do |name|
             define_method(name) do |*args, &block|
diff --git a/lib/mutant/reporter/cli/printer/status_progressive.rb b/lib/mutant/reporter/cli/printer/status_progressive.rb
index 842b1f16..e8dca7c2 100644
--- a/lib/mutant/reporter/cli/printer/status_progressive.rb
+++ b/lib/mutant/reporter/cli/printer/status_progressive.rb
@@ -41,7 +41,7 @@ module Mutant
           #
           # @api private
           def object
-            super.payload
+            super().payload
           end
         end # StatusProgressive
       end # Printer
diff --git a/lib/mutant/zombifier.rb b/lib/mutant/zombifier.rb
index c540e1d6..da138c48 100644
--- a/lib/mutant/zombifier.rb
+++ b/lib/mutant/zombifier.rb
@@ -10,6 +10,7 @@ module Mutant
       :root_require,
       :pathname
     )
+    private(*anima.attribute_names)
 
     include AST::Sexp
 
@@ -56,7 +57,7 @@ module Mutant
     #
     # @api private
     def include?(logical_name)
-      !@zombified.include?(logical_name) && @includes =~ logical_name
+      !@zombified.include?(logical_name) && includes =~ logical_name
     end
 
     # Require file in zombie namespace