diff --git a/app/services/create_watch_video_service.rb b/app/services/create_watch_video_service.rb
index 4920374dc..f637a2126 100644
--- a/app/services/create_watch_video_service.rb
+++ b/app/services/create_watch_video_service.rb
@@ -52,9 +52,9 @@ class CreateWatchVideoService < ApplicationService
               if params[:ed].present? || (watch_course_video.duration >= 300 && (watch_course_video.duration - params[:point].to_i) <= 20)
                 video_duration = watch_video_history.video.duration.to_i
                 if video_duration > 0
-                  watch_course_video.is_finished = watch_course_video.total_duration >= video_duration
+                  watch_course_video.is_finished = watch_course_video.total_duration.to_i >= video_duration
                 else
-                  watch_course_video.is_finished = watch_course_video.total_duration >= watch_course_video.duration
+                  watch_course_video.is_finished = watch_course_video.total_duration.to_i >= watch_course_video.duration.to_i
                 end
               end
             end