diff --git a/lisp/org-table.el b/lisp/org-table.el
index ae12cee..19367b5 100644
--- a/lisp/org-table.el
+++ b/lisp/org-table.el
@@ -3826,7 +3826,7 @@ Use COMMAND to do the motion, repeat if necessary to end up in a data line."
   "Local variable used by `orgtbl-mode'.")
 
 (defconst orgtbl-line-start-regexp
-  "[ \t]*\\(|\\|#\\+\\(TBLFM\\|ORGTBL\\|TBLNAME\\):\\)"
+  "[ \t]*\\(|\\|#\\+\\(tblfm\\|orgtbl\\|tblname\\):\\)"
   "Matches a line belonging to an orgtbl.")
 
 (defconst orgtbl-extra-font-lock-keywords