diff --git a/guides/source/active_support_core_extensions.md b/guides/source/active_support_core_extensions.md
index f6f96b79c6..616b813817 100644
--- a/guides/source/active_support_core_extensions.md
+++ b/guides/source/active_support_core_extensions.md
@@ -1011,7 +1011,7 @@ self.default_params = {
 }.freeze
 ```
 
-They can be also accessed and overridden at the instance level.
+They can also be accessed and overridden at the instance level.
 
 ```ruby
 A.x = 1
diff --git a/railties/lib/rails/engine.rb b/railties/lib/rails/engine.rb
index d985518fd9..023ea98145 100644
--- a/railties/lib/rails/engine.rb
+++ b/railties/lib/rails/engine.rb
@@ -110,8 +110,8 @@ module Rails
   #
   # == Endpoint
   #
-  # An engine can be also a rack application. It can be useful if you have a rack application that
-  # you would like to wrap with +Engine+ and provide some of the +Engine+'s features.
+  # An engine can also be a rack application. It can be useful if you have a rack application that
+  # you would like to wrap with +Engine+ and provide with some of the +Engine+'s features.
   #
   # To do that, use the +endpoint+ method:
   #