diff --git a/share/functions/__fish_protontricks_complete_appid.fish b/share/functions/__fish_protontricks_complete_appid.fish
index 3a8125b67..157505822 100644
--- a/share/functions/__fish_protontricks_complete_appid.fish
+++ b/share/functions/__fish_protontricks_complete_appid.fish
@@ -1,6 +1,9 @@
 # localization: skip(private)
 function __fish_protontricks_complete_appid
-    protontricks -l |
+    # '-L' is a newer flag that lists all games without a graphical prompt
+    # if multiple Steam installations exist
+    set output "$(protontricks -L 2>/dev/null || protontricks -l 2>/dev/null)"
+    echo $output |
         string match --regex '.*\(\d+\)' |
         string replace --regex '(.*) \((\d+)\)' '$2\t$1'
 end