diff --git a/src/r36s_dlna_browser/ui/sdl_app.py b/src/r36s_dlna_browser/ui/sdl_app.py
index ad02452..82aa266 100644
--- a/src/r36s_dlna_browser/ui/sdl_app.py
+++ b/src/r36s_dlna_browser/ui/sdl_app.py
@@ -341,11 +341,11 @@ class SDLApp:
             self._adjust_browse_scroll()
             self._mark_dirty()
         elif action == Action.PAGE_UP and n:
-            self._state.cursor = max(0, self._state.cursor - theme.PAGE_SIZE)
+            self._state.cursor = max(0, self._state.cursor - self._layout.page_size)
             self._adjust_browse_scroll()
             self._mark_dirty()
         elif action == Action.PAGE_DOWN and n:
-            self._state.cursor = min(n - 1, self._state.cursor + theme.PAGE_SIZE)
+            self._state.cursor = min(n - 1, self._state.cursor + self._layout.page_size)
             self._adjust_browse_scroll()
             self._mark_dirty()
         elif action == Action.CONFIRM: