diff --git a/include/clang-c/Index.h b/include/clang-c/Index.h
index bbd4881..757450e 100644
--- a/include/clang-c/Index.h
+++ b/include/clang-c/Index.h
@@ -4033,8 +4033,8 @@
 
 /**
  * \brief Given a cursor that represents an Objective-C method or property
- * declaration, return non-zero if the declaration was affected by "@optional".
- * Returns zero if the cursor is not such a declaration or it is "@required".
+ * declaration, return non-zero if the declaration was affected by "\@optional".
+ * Returns zero if the cursor is not such a declaration or it is "\@required".
  */
 CINDEX_LINKAGE unsigned clang_Cursor_isObjCOptional(CXCursor C);
 
@@ -4710,7 +4710,7 @@
    */
   CXCompletionChunk_HorizontalSpace,
   /**
-   * Vertical space ('\n'), after which it is generally a good idea to
+   * Vertical space ('\\n'), after which it is generally a good idea to
    * perform indentation.
    */
   CXCompletionChunk_VerticalSpace