1 files changed, 3 insertions, 3 deletions

diff --git a/src/termhooks.h b/src/termhooks.h
index 9de8401341e..d86dd863794 100644
--- a/src/termhooks.h
+++ b/src/termhooks.h
@@ -249,7 +249,7 @@ enum event_kind
   buffer_switch_event,          /* A process filter has switched buffers.  */
   delete_window_event,          /* An X client said "delete this window".  */
   menu_bar_event,               /* An event generated by the menu bar.
-                                   The frame_or_window field holds the
+                                   The frame_or_window field's cdr holds the
                                    Lisp-level event value.
                                    (Only the toolkit version uses these.)  */
   iconify_event,                /* An X client iconified this window.  */
@@ -278,8 +278,8 @@ struct input_event {
 
   /* This field is copied into a vector while the event is in the queue,
      so that garbage collections won't kill it.  */
-  /* In a menu_bar_event, this holds the Lisp object
-     that is the event's value.  */
+  /* In a menu_bar_event, this is a cons cell whose car is the frame
+     and whose cdr is the Lisp object that is the event's value.  */
   Lisp_Object frame_or_window;
 
   int modifiers;                /* See enum below for interpretation.  */