diff --git a/lisp/org.el b/lisp/org.el
index 858123e67a..950a2e1440 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -10799,7 +10799,7 @@ headlines matching this string."
 			 ;; Get the correct level to match
 			 (concat "\\*\\{" (number-to-string start-level) "\\} ")
 		       org-outline-regexp)
-		     " *\\(" (regexp-opt org-todo-keywords-1 'words) "\\)?"
+		     " *\\(" (regexp-opt org-todo-keywords-1 'words) " \\)?"
 		     " *\\(.*?\\)\\([ \t]:\\(?:" org-tag-re ":\\)+\\)?[ \t]*$"))
 	 (props (list 'face 'default
 		      'done-face 'org-agenda-done