diff --git a/np-bot.js b/np-bot.js
index def946c..202e567 100644
--- a/np-bot.js
+++ b/np-bot.js
@@ -14,7 +14,6 @@ var problems = [
     {"title": "Longest common subsequence problem"},
     {"title": "Art gallery problem"},
     {"title": "Route inspection problem"},
-    {"title": "Open-shop scheduling problem"},
     {"title": "Calculated minimum spanning tree"}
 ]