diff --git a/lib/minitest/simplecov_plugin.rb b/lib/minitest/simplecov_plugin.rb
index 96f1938d..ac4cf076 100644
--- a/lib/minitest/simplecov_plugin.rb
+++ b/lib/minitest/simplecov_plugin.rb
@@ -3,7 +3,7 @@
 module Minitest
   def self.plugin_simplecov_init(_options)
     Minitest.after_run do
-      SimpleCov.custom_at_exit if SimpleCov.respond_to?(:custom_at_exit)
+      SimpleCov.at_exit_behvior if SimpleCov.respond_to?(:at_exit_behvior)
     end
   end
 end
diff --git a/lib/simplecov.rb b/lib/simplecov.rb
index f8edae47..ac668264 100644
--- a/lib/simplecov.rb
+++ b/lib/simplecov.rb
@@ -189,6 +189,14 @@ def exit_status_from_exception
       end
     end
 
+    def at_exit_behvior
+      # If we are in a different process than called start, don't interfere.
+      return if SimpleCov.pid != Process.pid
+
+      # If SimpleCov is no longer running then don't run exit tasks
+      SimpleCov.run_exit_tasks! if SimpleCov.running
+    end
+
     # @api private
     #
     # Called from at_exit block
diff --git a/lib/simplecov/defaults.rb b/lib/simplecov/defaults.rb
index 2ec88501..364e247f 100644
--- a/lib/simplecov/defaults.rb
+++ b/lib/simplecov/defaults.rb
@@ -21,21 +21,11 @@
 # Gotta stash this a-s-a-p, see the CommandGuesser class and i.e. #110 for further info
 SimpleCov::CommandGuesser.original_run_command = "#{$PROGRAM_NAME} #{ARGV.join(' ')}"
 
-module SimpleCov
-  def self.custom_at_exit
-    # If we are in a different process than called start, don't interfere.
-    return if SimpleCov.pid != Process.pid
-
-    # If SimpleCov is no longer running then don't run exit tasks
-    SimpleCov.run_exit_tasks! if SimpleCov.running
-  end
-end
-
 at_exit do
   # Exit hook for Minitest defined in Minitest plugin
   next if defined?(Minitest)
 
-  SimpleCov.custom_at_exit
+  SimpleCov.at_exit_behvior
 end
 
 # Autoload config from ~/.simplecov if present