diff --git a/oxtimelines/timeline.py b/oxtimelines/timeline.py
index 30cbf25..9624a06 100644
--- a/oxtimelines/timeline.py
+++ b/oxtimelines/timeline.py
@@ -436,6 +436,8 @@ class Timelines():
             wide = 1 if mode == 'keyframes' else self.wide
             frame_ratio = self.frame_ratio * wide
             cut_images = int(math.ceil(cut_width / (frame_ratio * self.large_tile_h)))
+            if cut_width == cut_images == 0:
+                print 'ERROR division by zerro', cut_width, cut_images
             image_widths = self._divide(cut_width, cut_images)
             image_i = self.cuts[-2]
             large_keyframes_tile_i = self.large_keyframes_tile_i
@@ -506,6 +508,8 @@ class Timelines():
     def _divide(self, num, by):
         # divide(100, 3) -> [33, 33, 34]
         arr = []
+        if by == 0:
+            return arr
         div = int(num / by)
         mod = num % by
         for i in range(int(by)):