diff --git a/src/gui_window.rs b/src/gui_window.rs
index 7b5ecfc..28eb6e0 100644
--- a/src/gui_window.rs
+++ b/src/gui_window.rs
@@ -37,7 +37,7 @@ impl GuiWindow {
         }
     }
 
-    pub fn get_buffer(&mut self) -> Buffer<Rc<Window>, Rc<Window>> {
+    pub fn get_buffer(&mut self) -> Buffer<'_, Rc<Window>, Rc<Window>> {
         self.surface.buffer_mut().unwrap()
     }
     pub(crate) fn request_redraw(&self) {