diff --git a/lisp/org.el b/lisp/org.el
index 8971a3fab..0b9cbedeb 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -113,6 +113,7 @@ Stars are put in group 1 and the trimmed body in group 2.")
 (declare-function org-inlinetask-toggle-visibility "org-inlinetask" ())
 (declare-function org-pop-to-buffer-same-window "org-compat" (&optional buffer-or-name norecord label))
 (declare-function org-at-clock-log-p "org-clock" ())
+(declare-function org-clock-get-last-clock-out-time "org-clock" ())
 (declare-function org-clock-timestamps-up "org-clock" ())
 (declare-function org-clock-timestamps-down "org-clock" ())
 (declare-function org-clock-sum-current-item "org-clock" (&optional tstart))