diff --git a/activesupport/lib/active_support/core_ext/marshal.rb b/activesupport/lib/active_support/core_ext/marshal.rb
index c7a8348b1d4d53048e06ac23e5749cbeb257d31a..56c79c04bdabaedb9a071a4cbc0c2f343adab96b 100644
--- a/activesupport/lib/active_support/core_ext/marshal.rb
+++ b/activesupport/lib/active_support/core_ext/marshal.rb
@@ -1,3 +1,5 @@
+require 'active_support/core_ext/module/aliasing'
+
 module Marshal
   class << self
     def load_with_autoloading(source)
diff --git a/activesupport/lib/active_support/core_ext/range/include_range.rb b/activesupport/lib/active_support/core_ext/range/include_range.rb
index 3af66aaf2f17c4013ff765e733e60f40acaaa337..3a07401c8a2a5b00ee6addd7885ff11d43b3ee69 100644
--- a/activesupport/lib/active_support/core_ext/range/include_range.rb
+++ b/activesupport/lib/active_support/core_ext/range/include_range.rb
@@ -1,3 +1,5 @@
+require 'active_support/core_ext/module/aliasing'
+
 class Range
   # Extends the default Range#include? to support range comparisons.
   #  (1..5).include?(1..5) # => true