diff --git a/ReferenceOfClasses.md b/ReferenceOfClasses.md
index 06929fe7..d38498be 100644
--- a/ReferenceOfClasses.md
+++ b/ReferenceOfClasses.md
@@ -492,6 +492,9 @@ Attributes
 * `changed_files`
 * `head`
 * `base`
+* `merged_by`
+* `review_comments`
+* `user`: `NamedUser`
 
 Modification
 ------------
@@ -625,7 +628,7 @@ Git refs
 Git commits
 -----------
 * `get_git_commit( sha )`: `GitCommit`
-* `create_git_commit( message, tree, parents, [author, commiter] )`: `GitCommit`
+* `create_git_commit( message, tree, parents, [author, committer] )`: `GitCommit`
 
 Git trees
 ---------
diff --git a/github/GithubObjects.py b/github/GithubObjects.py
index ff4c7ab0..e95e0836 100644
--- a/github/GithubObjects.py
+++ b/github/GithubObjects.py
@@ -385,7 +385,7 @@ Repository._addAttributePolicy( SeveralAttributePolicies( [
     ),
     ExternalListOfObjects( "git/commits", "git_commit", GitCommit,
         ElementGetable( [ "sha" ], [], __modifyAttributesForObjectsReferingRepo ),
-        ElementCreatable( [ "message", "tree", "parents" ], [ "author", "commiter" ], __modifyAttributesForObjectsReferingRepo )
+        ElementCreatable( [ "message", "tree", "parents" ], [ "author", "committer" ], __modifyAttributesForObjectsReferingRepo )
     ),
     ExternalListOfObjects( "git/trees", "git_tree", GitTree,
         ElementGetable( [ "sha" ], [], __modifyAttributesForObjectsReferingRepo ),