diff --git a/github/GithubObject.py b/github/GithubObject.py
index 20fa51e7..35e4b5b5 100644
--- a/github/GithubObject.py
+++ b/github/GithubObject.py
@@ -195,14 +195,14 @@ class GithubObject(object):
     @property
     def etag(self):
         '''
-        :type str
+        :type: str
         '''
         return self._headers.get(Consts.RES_ETAG)
 
     @property
     def last_modified(self):
         '''
-        :type str
+        :type: str
         '''
         return self._headers.get(Consts.RES_LAST_MODIFED)