diff --git a/search-engine.py b/search-engine.py
index 417da2d..4b69879 100644
--- a/search-engine.py
+++ b/search-engine.py
@@ -5,7 +5,7 @@ import sys
 
 from sklearn.feature_extraction.text import TfidfVectorizer
 
-enable_popularity = len(sys.argv) > 2 and sys.argv[1] == '--no-popularity'
+enable_popularity = not (len(sys.argv) >= 2 and sys.argv[1] == '--no-popularity')
 
 def get_appid_for_idx(idx):
     return steam_data.iloc[idx]['appid']
diff --git a/setup.sh b/setup.sh
old mode 100644
new mode 100755