diff --git a/usr/share/xdg-desktop-portal/river-portals.conf b/usr/share/xdg-desktop-portal/river-portals.conf
new file mode 100644
index 0000000..aa046f6
--- /dev/null
+++ b/usr/share/xdg-desktop-portal/river-portals.conf
@@ -0,0 +1,6 @@
+[preferred]
+# Use xdg-desktop-portal-gtk for every portal interface...
+default=gtk
+# ... except for the ScreenCast and Screenshot
+org.freedesktop.impl.portal.ScreenCast=wlr
+org.freedesktop.impl.portal.Screenshot=wlr