diff --git a/Documentation/APIKit2MigrationGuide.md b/Documentation/APIKit2MigrationGuide.md
index e67d78e4..05a32e5c 100644
--- a/Documentation/APIKit2MigrationGuide.md
+++ b/Documentation/APIKit2MigrationGuide.md
@@ -16,7 +16,7 @@ Errors cases of `Session.sendRequest(_:handler:)` is reduced to 3 cases listed b
 ```swift
 public enum SessionTaskError: ErrorType {
     /// Error of networking backend such as `NSURLSession`.
-    case ConnectionError(NSError)
+    case ConnectionError(ErrorType)
 
     /// Error while creating `NSURLRequest` from `Request`.
     case RequestError(ErrorType)
diff --git a/Sources/DataParserType/StringDataParser.swift b/Sources/DataParserType/StringDataParser.swift
index aa54a014..21d08d30 100644
--- a/Sources/DataParserType/StringDataParser.swift
+++ b/Sources/DataParserType/StringDataParser.swift
@@ -9,7 +9,7 @@ public class StringDataParser: DataParserType {
     /// The string encoding of the data.
     public let encoding: NSStringEncoding
 
-    /// Returns `FormURLEncodedDataParser` with the string encoding.
+    /// Returns `StringDataParser` with the string encoding.
     public init(encoding: NSStringEncoding = NSUTF8StringEncoding) {
         self.encoding = encoding
     }