diff --git a/oxtimelines/timeline.py b/oxtimelines/timeline.py
index 250c001..5cef458 100644
--- a/oxtimelines/timeline.py
+++ b/oxtimelines/timeline.py
@@ -44,10 +44,9 @@ class Timelines():
         self.render_slitscan = 'slitscan' in modes
         if 'multiline' in modes:
             info = ox.avinfo(video_files[0])
-            self.render_multiline = info['video'][0]['width']
             self.output_h = sizes[0]
             sizes = [info['video'][0]['height']] + sizes[1:]
-            self.render_multiline = True
+            self.render_multiline = info['video'][0]['width']
             self._pool = ThreadPool(multiprocessing.cpu_count())
         else:
             self.render_multiline = False
@@ -460,7 +459,7 @@ class Timelines():
                         self.tile_path, line, 'slitscan', self.output_h, index, type
                     )
                     ox.makedirs(os.path.dirname(tile_file))
-                    width = self.large_tile_image[mode][line].size[1]
+                    width = self.large_tile_image[mode][line].size[0]
                     img = self.large_tile_image[mode][line]
                     if self.output_h != self.large_tile_image[mode][line].size[0]:
                         img = img.resize((width, self.output_h), Image.BICUBIC)