diff --git a/actionpack/Rakefile b/actionpack/Rakefile
index 4b60b777593c67c116d7a7a7e0133fdbfc934206..3bd27f8d64da94046b1781c2a7f361d8fe88c885 100644
--- a/actionpack/Rakefile
+++ b/actionpack/Rakefile
@@ -9,10 +9,7 @@ task :default => :test
 # Run the unit tests
 Rake::TestTask.new do |t|
   t.libs << 'test'
-
-  # make sure we include the tests in alphabetical order as on some systems
-  # this will not happen automatically and the tests (as a whole) will error
-  t.test_files = test_files.sort
+  t.test_files = test_files
 
   t.warning = true
   t.verbose = true
diff --git a/actionview/Rakefile b/actionview/Rakefile
index 1b7143594812b584e54e89ffefc543d8a6a3b4a9..2b752b83df1b262d4643b6b2ef684deba243f4e7 100644
--- a/actionview/Rakefile
+++ b/actionview/Rakefile
@@ -18,7 +18,7 @@ namespace :test do
 
   Rake::TestTask.new(:template) do |t|
     t.libs << 'test'
-    t.test_files = Dir.glob('test/template/**/*_test.rb').sort
+    t.test_files = Dir.glob('test/template/**/*_test.rb')
     t.warning = true
     t.verbose = true
     t.ruby_opts = ["--dev"] if defined?(JRUBY_VERSION)
diff --git a/activemodel/Rakefile b/activemodel/Rakefile
index c30a559ef55149c86fdc1802d617d3450c9b33b1..7256285a41d7f8c98c9c71967eca4cc74fd09d7e 100644
--- a/activemodel/Rakefile
+++ b/activemodel/Rakefile
@@ -6,7 +6,7 @@ task :default => :test
 
 Rake::TestTask.new do |t|
   t.libs << "test"
-  t.test_files = Dir.glob("#{dir}/test/cases/**/*_test.rb").sort
+  t.test_files = Dir.glob("#{dir}/test/cases/**/*_test.rb")
   t.warning = true
   t.verbose = true
   t.ruby_opts = ["--dev"] if defined?(JRUBY_VERSION)
diff --git a/activerecord/Rakefile b/activerecord/Rakefile
index 976b559da9b32272dc97eaa31743baaab0d5e0dd..f1facac21b94d037a3aeeb6ebce8e9d845db00aa 100644
--- a/activerecord/Rakefile
+++ b/activerecord/Rakefile
@@ -51,7 +51,7 @@ end
       t.libs << 'test'
       t.test_files = (Dir.glob( "test/cases/**/*_test.rb" ).reject {
         |x| x =~ /\/adapters\//
-      } + Dir.glob("test/cases/adapters/#{adapter_short}/**/*_test.rb")).sort
+      } + Dir.glob("test/cases/adapters/#{adapter_short}/**/*_test.rb"))
 
       t.warning = true
       t.verbose = true