diff --git a/actionmailer/README.rdoc b/actionmailer/README.rdoc
index a4e660d6218bf4ddab0bc1571d150599f95bec7b..e5c2ed8c774325acb0e17d888553be462128a66c 100644
--- a/actionmailer/README.rdoc
+++ b/actionmailer/README.rdoc
@@ -146,7 +146,7 @@ The Base class has the full list of configuration options. Here's an example:
 
 The latest version of Action Mailer can be installed with RubyGems:
 
-  % [sudo] gem install actionmailer
+  % gem install actionmailer
 
 Source code can be downloaded as part of the Rails project on GitHub
 
diff --git a/actionpack/README.rdoc b/actionpack/README.rdoc
index 02a24a74122205c8021e91966fcf2468892e408e..44c980b07025c343a8d988f8809c8a886817c931 100644
--- a/actionpack/README.rdoc
+++ b/actionpack/README.rdoc
@@ -28,7 +28,7 @@ can be used outside of Rails.
 
 The latest version of Action Pack can be installed with RubyGems:
 
-  % [sudo] gem install actionpack
+  % gem install actionpack
 
 Source code can be downloaded as part of the Rails project on GitHub
 
diff --git a/actionview/README.rdoc b/actionview/README.rdoc
index 5bb62c75625cb3705199ebb9df57cfc5372ca6c5..8b1f85f74818fdf271a949011d6a7138638ec0b2 100644
--- a/actionview/README.rdoc
+++ b/actionview/README.rdoc
@@ -9,7 +9,7 @@ used to inline short Ruby snippets inside HTML), and XML Builder.
 
 The latest version of Action View can be installed with RubyGems:
 
-  % [sudo] gem install actionview
+  % gem install actionview
 
 Source code can be downloaded as part of the Rails project on GitHub
 
diff --git a/activejob/README.md b/activejob/README.md
index 5170ebee6e95362edda6b3e2153ed66d1feef8ae..f9a3183b1ae349c2b9816e0baafd6a450a6096b7 100644
--- a/activejob/README.md
+++ b/activejob/README.md
@@ -102,7 +102,7 @@ see the API Documentation for [ActiveJob::QueueAdapters](http://api.rubyonrails.
 The latest version of Active Job can be installed with RubyGems:
 
 ```
-  % [sudo] gem install activejob
+  % gem install activejob
 ```
 
 Source code can be downloaded as part of the Rails project on GitHub
diff --git a/activemodel/README.rdoc b/activemodel/README.rdoc
index 4920666f2745a4cb8d633d4b2a3e2572cb285be9..5c36b1277e827e072e0d962ac32a93c06c6bc182 100644
--- a/activemodel/README.rdoc
+++ b/activemodel/README.rdoc
@@ -242,7 +242,7 @@ behavior out of the box:
 
 The latest version of Active Model can be installed with RubyGems:
 
-  % [sudo] gem install activemodel
+  % gem install activemodel
 
 Source code can be downloaded as part of the Rails project on GitHub
 
diff --git a/activerecord/README.rdoc b/activerecord/README.rdoc
index f4777919d3a1ad0b1f4bff4ce2240ae5981f8639..85d807933aea4607cec79680a8a10a2e75de1de2 100644
--- a/activerecord/README.rdoc
+++ b/activerecord/README.rdoc
@@ -188,7 +188,7 @@ Admit the Database:
 
 The latest version of Active Record can be installed with RubyGems:
 
-  % [sudo] gem install activerecord
+  % gem install activerecord
 
 Source code can be downloaded as part of the Rails project on GitHub:
 
diff --git a/activesupport/README.rdoc b/activesupport/README.rdoc
index a6424a353a0c80c8d945bbc62540f47c354045f9..cd72f5382142af231c3b73c57225c5133122b6ea 100644
--- a/activesupport/README.rdoc
+++ b/activesupport/README.rdoc
@@ -10,7 +10,7 @@ outside of Rails.
 
 The latest version of Active Support can be installed with RubyGems:
 
-  % [sudo] gem install activesupport
+  % gem install activesupport
 
 Source code can be downloaded as part of the Rails project on GitHub: