1 files changed, 2 insertions, 2 deletions
diff --git a/MdePkg/Include/Protocol/DriverDiagnostics2.h b/MdePkg/Include/Protocol/DriverDiagnostics2.h
index b56997d..0531223 100644
--- a/MdePkg/Include/Protocol/DriverDiagnostics2.h
+++ b/MdePkg/Include/Protocol/DriverDiagnostics2.h
@@ -45,7 +45,7 @@ typedef struct _EFI_DRIVER_DIAGNOSTICS2_PROTOCOL  EFI_DRIVER_DIAGNOSTICS2_PROTOC
                            languages specified in SupportedLanguages.
                            The number of languages supported by a
                            driver is up to the driver writer. Language
-                           is specified in RFC 3066 language code format.
+                           is specified in RFC 4646 language code format.
   @param  ErrorType        A GUID that defines the format of the data returned in Buffer.
   @param  BufferSize       The size, in bytes, of the data returned in Buffer.
   @param  Buffer           A buffer that contains a Null-terminated Unicode string
@@ -100,7 +100,7 @@ EFI_STATUS
 struct _EFI_DRIVER_DIAGNOSTICS2_PROTOCOL {
   EFI_DRIVER_DIAGNOSTICS2_RUN_DIAGNOSTICS RunDiagnostics;
   ///
-  /// A Null-terminated ASCII string that contains one or more RFC 3066
+  /// A Null-terminated ASCII string that contains one or more RFC 4646
   /// language codes.  This is the list of language codes that this protocol supports.  
   ///    
   CHAR8                                   *SupportedLanguages;