diff --git a/github2/commits.py b/github2/commits.py
index 9907745..cb531ee 100644
--- a/github2/commits.py
+++ b/github2/commits.py
@@ -8,7 +8,7 @@ class Commit(BaseData):
     author = Attribute("Author metadata (dict with name/email.)")
     id = Attribute("Commit ID.")
     committed_date = DateAttribute("Date committed.", format="commit")
-    authored_data = DateAttribute("Date authored.", format="commit")
+    authored_date = DateAttribute("Date authored.", format="commit")
     tree = Attribute("Tree SHA for this commit.")
     committer = Attribute("Comitter metadata (dict with name/email.)")