diff --git a/lib/bundler/feature_flag.rb b/lib/bundler/feature_flag.rb
index 63e0c85c8a..b19cf42cc3 100644
--- a/lib/bundler/feature_flag.rb
+++ b/lib/bundler/feature_flag.rb
@@ -25,7 +25,7 @@ module Bundler
     end
     private_class_method :settings_method
 
-    (1..10).each {|v| define_method("bundler_#{v}_mode?") { major_version >= v } }
+    (1..10).each {|v| define_method("bundler_#{v}_mode?") { @major_version >= v } }
 
     settings_flag(:allow_offline_install) { bundler_3_mode? }
     settings_flag(:auto_clean_without_path) { bundler_3_mode? }
@@ -44,11 +44,7 @@ module Bundler
 
     def initialize(bundler_version)
       @bundler_version = Gem::Version.create(bundler_version)
+      @major_version = @bundler_version.segments.first
     end
-
-    def major_version
-      @bundler_version.segments.first
-    end
-    private :major_version
   end
 end