diff --git a/github/events/issues.py b/github/events/issues.py
index e890b6a..fc4f0e6 100644
--- a/github/events/issues.py
+++ b/github/events/issues.py
@@ -9,10 +9,10 @@
 class EventIssues(EventBase):
 
     def __init__(self, sdk):
+        super(EventIssues, self).__init__(sdk)
         self.issue = None
         self.repository = None
         self.sender = None
-        self.sdk = sdk
 
     """
     IssuesEvent
diff --git a/github/events/pull_request.py b/github/events/pull_request.py
index 284bd31..1c537f4 100644
--- a/github/events/pull_request.py
+++ b/github/events/pull_request.py
@@ -10,10 +10,10 @@
 class EventPullRequest(EventBase):
 
     def __init__(self, sdk):
+        super(EventPullRequest, self).__init__(sdk)
         self.pull_request = None
         self.repository = None
         self.sender = None
-        self.sdk = sdk
 
     """
     PullRequestEvent
diff --git a/github/events/pull_request_review.py b/github/events/pull_request_review.py
index 88ee24a..9bb0a18 100644
--- a/github/events/pull_request_review.py
+++ b/github/events/pull_request_review.py
@@ -10,10 +10,10 @@
 class EventPullRequestReview(EventBase):
 
     def __init__(self, sdk):
+        super(EventPullRequestReview, self).__init__(sdk)
         self.pull_request = None
         self.repository = None
         self.sender = None
-        self.sdk = sdk
 
     """
     PullRequestReviewEvent
diff --git a/github/events/push.py b/github/events/push.py
index afb3e70..c3b5884 100644
--- a/github/events/push.py
+++ b/github/events/push.py
@@ -9,10 +9,10 @@
 class EventPush(EventBase):
 
     def __init__(self, sdk):
+        super(EventPush, self).__init__(sdk)
         self.repository = None
         self.sender = None
         self.commits = []
-        self.sdk = sdk
 
     """
     PushEvent