diff --git a/README.md b/README.md
index c3000dc..bc2b6ec 100644
--- a/README.md
+++ b/README.md
@@ -446,6 +446,14 @@ riverctl spawn "inga-xdg-desktop-portal-wlr"
 (for some reason `xdg-desktop-portal` gets started automatically and after that newly started xdg-desktop-portal-wlr does not work;
 we need to kill that xdg-desktop-portal first)
 
+Also create `.config/xdg-desktop-portal-wlr/config` with the following:
+
+```
+[screencast]
+chooser_cmd=bemenu
+chooser_type=dmenu
+```
+
 ### Prevent firefox sharing indicator from taking the entire tile
 
 Add the following lines to river config (before the last `exec` line):