diff --git a/AFNetworking/AFHTTPRequestOperationManager.h b/AFNetworking/AFHTTPRequestOperationManager.h
index ddefa2d..75d8017 100644
--- a/AFNetworking/AFHTTPRequestOperationManager.h
+++ b/AFNetworking/AFHTTPRequestOperationManager.h
@@ -37,7 +37,7 @@
 #import "AFNetworkReachabilityManager.h"
 
 /**
- `AFHTTPRequestOperationManager` encapsulates the common patterns of communicating with an web application over HTTP, including request creation, response serialization, network reachability monitoring, and security, as well as request operation management.
+ `AFHTTPRequestOperationManager` encapsulates the common patterns of communicating with a web application over HTTP, including request creation, response serialization, network reachability monitoring, and security, as well as request operation management.
 
  ## Subclassing Notes