diff --git a/lisp/org.el b/lisp/org.el
index 9b25204ce..c8193d262 100755
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -91,6 +91,8 @@
 (require 'org-macs)
 (require 'org-compat)
 
+(declare-function cdlatex-environment "ext:cdlatex" (environment item))
+
 ;; `org-outline-regexp' ought to be a defconst but is let-bound in
 ;; some places -- e.g. see the macro `org-with-limited-levels'.
 ;;