diff --git a/novel_stats/novel_stats.py b/novel_stats/novel_stats.py
index f32e4ae..3bc1034 100755
--- a/novel_stats/novel_stats.py
+++ b/novel_stats/novel_stats.py
@@ -73,7 +73,7 @@ def main():
         chapter_status = status_by_chapter.get(chapter_number)
 
         print(
-            'chapter {}: {} words{}'.format(
+            'chapter {}: {:,} words{}'.format(
                 chapter_number,
                 chapter_word_count,
                 ' ({})'.format(chapter_status) if chapter_status else '',
@@ -86,12 +86,12 @@ def main():
         if act_number is None:
             continue
 
-        print('act {}: {} words (~{}%)'.format(act_number, act_word_count, act_word_count * 100 // total_word_count))
+        print('act {}: {:,} words (~{}%)'.format(act_number, act_word_count, act_word_count * 100 // total_word_count))
 
     for status, status_word_count in word_count_by_status.items():
-        print('{}: {} words (~{}%)'.format(status, status_word_count, status_word_count * 100 // total_word_count))
+        print('{}: {:,} words (~{}%)'.format(status, status_word_count, status_word_count * 100 // total_word_count))
 
-    print('total: {} words'.format(total_word_count))
+    print('total: {:,} words'.format(total_word_count))
 
 
 if __name__ == '__main__':