From e2f3034a96d2a74b245a53bf5728812649bf9a7e Mon Sep 17 00:00:00 2001
From: Jerome Petazzoni <jerome.petazzoni@gmail.com>
Date: Thu, 30 Jan 2020 01:11:09 -0600
Subject: [PATCH] Fix container picture generator

---
 slides/markmaker.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/slides/markmaker.py b/slides/markmaker.py
index aad08012..07e78062 100755
--- a/slides/markmaker.py
+++ b/slides/markmaker.py
@@ -28,7 +28,7 @@ class Interstitials(object):
 
     def next(self):
         index = self.index % len(self.images)
-        index += 1
+        self.index += 1
         return self.images[index]