diff --git a/utility/merge_multiepisodes.py b/utility/merge_multiepisodes.py
index 7ae93b4..78e32ce 100644
--- a/utility/merge_multiepisodes.py
+++ b/utility/merge_multiepisodes.py
@@ -28,7 +28,7 @@
         python merge_multiepisodes.py --library "TV Shows" --show "SpongeBob SquarePants" --renumber
 
     * With renumbering episodes and composite thumb:
-        python merge_multiepisodes.py --library "TV Shows" --show "SpongeBob SquarePants" --renumber --composite-thumb
+        python merge_multiepisodes.py --library "TV Shows" --show "SpongeBob SquarePants" --renumber --composite_thumb
 '''
 
 import argparse