diff --git a/actionpack/lib/action_controller/metal/conditional_get.rb b/actionpack/lib/action_controller/metal/conditional_get.rb
index 00b380d3dc..f202000347 100644
--- a/actionpack/lib/action_controller/metal/conditional_get.rb
+++ b/actionpack/lib/action_controller/metal/conditional_get.rb
@@ -39,7 +39,7 @@ module ActionController
# * :etag Sets a "weak" ETag validator on the response. See the
# +:weak_etag+ option.
# * :weak_etag Sets a "weak" ETag validator on the response.
- # requests that set If-None-Match header may return a 304 Not Modified
+ # Requests that set If-None-Match header may return a 304 Not Modified
# response if it matches the ETag exactly. A weak ETag indicates semantic
# equivalence, not byte-for-byte equality, so they're a good for caching
# HTML pages in browser caches. They can't be used for responses that