diff --git a/config.el b/config.el
index 55ea425..d6a027f 100644
--- a/config.el
+++ b/config.el
@@ -1949,7 +1949,7 @@ Falls back to calfw-org-open-calendar pokud něco selže."
           (calfw-open-calendar-buffer
            :contents-sources (nreverse sources)
            :view 'month
-           :sorter 'calfw-org--schedule-sorter))
+           :sorter 'calfw-sorter-start-time))
       (error
        (message "calfw colored sources failed (%s), fallback." (error-message-string err))
        (calfw-org-open-calendar))))