Doing a M-x eval-buffer on a file containing this: (funcall (let ((a 0)) (lambda () a))) ;; Local Variables: ;; lexical-binding: t ;; End: Will result in an error: funcall: Symbol's value as variable is void: a But a file containing this: ;; -*- lexical-binding: t -*- (funcall (let ((a 0)) (lambda () a))) Will work as expected. No problem. I was expecting these these to be equivalent. I checked the manual, "Specifying File Variables" and that seems to say that using either the first line or variable list should have the same effect. Seems related to #15070 and #20139. (I'm not sure about the exact version of Emacs. It's probably old, I'm on Ubuntu 14.04 at the moment. Dpkg reports 24.3+1-2ubuntu1.) -- Tim