diff --git a/tmux.1 b/tmux.1
index 9405a11a..9d392a90 100644
--- a/tmux.1
+++ b/tmux.1
@@ -4214,6 +4214,8 @@ The following variables are available, where appropriate:
 .It Li "command_list_alias" Ta "" Ta "Command alias if listing commands"
 .It Li "command_list_name" Ta "" Ta "Command name if listing commands"
 .It Li "command_list_usage" Ta "" Ta "Command usage if listing commands"
+.It Li "copy_cursor_x" Ta "" Ta "Cursor X position in copy mode"
+.It Li "copy_cursor_y" Ta "" Ta "Cursor Y position in copy mode"
 .It Li "cursor_character" Ta "" Ta "Character at cursor in pane"
 .It Li "cursor_flag" Ta "" Ta "Pane cursor flag"
 .It Li "cursor_x" Ta "" Ta "Cursor X position in pane"
@@ -4279,7 +4281,11 @@ The following variables are available, where appropriate:
 .It Li "scroll_position" Ta "" Ta "Scroll position in copy mode"
 .It Li "scroll_region_lower" Ta "" Ta "Bottom of scroll region in pane"
 .It Li "scroll_region_upper" Ta "" Ta "Top of scroll region in pane"
+.It Li "selection_end_x" Ta "" Ta "X position of the end of the selection"
+.It Li "selection_end_y" Ta "" Ta "Y position of the end of the selection"
 .It Li "selection_present" Ta "" Ta "1 if selection started in copy mode"
+.It Li "selection_start_x" Ta "" Ta "X position of the start of the selection"
+.It Li "selection_start_y" Ta "" Ta "Y position of the start of the selection"
 .It Li "session_activity" Ta "" Ta "Time of session last activity"
 .It Li "session_alerts" Ta "" Ta "List of window indexes with alerts"
 .It Li "session_attached" Ta "" Ta "Number of clients session is attached to"
diff --git a/window-copy.c b/window-copy.c
index 76736ab2..bca236e3 100644
--- a/window-copy.c
+++ b/window-copy.c
@@ -565,9 +565,19 @@ window_copy_formats(struct window_mode_entry *wme, struct format_tree *ft)
 {
 	struct window_copy_mode_data	*data = wme->data;
 
-	format_add(ft, "selection_present", "%d", data->screen.sel != NULL);
 	format_add(ft, "scroll_position", "%d", data->oy);
 	format_add(ft, "rectangle_toggle", "%d", data->rectflag);
+
+	format_add(ft, "copy_cursor_x", "%d", data->cx);
+	format_add(ft, "copy_cursor_y", "%d", data->cy);
+
+	format_add(ft, "selection_present", "%d", data->screen.sel != NULL);
+	if (data->screen.sel != NULL) {
+		format_add(ft, "selection_start_x", "%d", data->selx);
+		format_add(ft, "selection_start_y", "%d", data->sely);
+		format_add(ft, "selection_end_x", "%d", data->endselx);
+		format_add(ft, "selection_end_y", "%d", data->endsely);
+	}
 }
 
 static void