diff --git a/data/private b/data/private
index 86eb0f8f..77e16518 100644
--- a/data/private
+++ b/data/private
@@ -168,6 +168,9 @@ plex.direct
 localhost.sec.qq.com
 localhost.ptlogin2.qq.com
 
+# Steam Deck Game mode
+test.steampowered.com
+
 # Tenda router
 tendawifi.com