diff --git a/src/printer.rs b/src/printer.rs
index 404bdda..e8e47a3 100644
--- a/src/printer.rs
+++ b/src/printer.rs
@@ -113,13 +113,16 @@ impl Printer {
 
     /// Prints a rectangular box.
     ///
+    /// If `invert` is `true`, and the theme uses `Outset` borders, then the
+    /// box will use an "inset" style instead.
+    ///
     /// # Examples
     ///
     /// ```
     /// # use cursive::Printer;
     /// # use cursive::theme;
     /// # let printer = Printer::new((6,4), theme::load_default());
-    /// printer.print_box((0,0), (6,4));
+    /// printer.print_box((0,0), (6,4), false);
     /// ```
     pub fn print_box<T: Into<Vec2>, S: Into<Vec2>>(&self, start: T, size: S,
                                                    invert: bool) {