diff --git a/hide-4k.py b/hide-4k.py
index 1a01f86..42a83c1 100644
--- a/hide-4k.py
+++ b/hide-4k.py
@@ -26,7 +26,7 @@
 for movie in added:
     resolutions = {m.videoResolution for m in movie.media}
     if len(resolutions) < 2 and '4k' in resolutions:
-        if optimise == 'False':
+        if optimise == 'false':
             movie.addLabel('Untranscodable')   
             print(movie.title+' has only 4k avaialble, setting untranscodable' )
         elif optimise == 'true':