diff --git a/.emacs.d/lisp/init-org.el b/.emacs.d/lisp/init-org.el
index b58c2ec4..cd8148d6 100644
--- a/.emacs.d/lisp/init-org.el
+++ b/.emacs.d/lisp/init-org.el
@@ -2,6 +2,9 @@
 
 ;;; TODO: org-import should be able to parse "|" in CSV files.
 
+;; REVIEW: We should not need this, but org-agenda complains without it.
+(require 'org-duration)
+
 (define-key org-mode-map (kbd "C-c C-a") 'org-agenda)
 
 (setq