diff --git a/scripts/install-server.sh b/scripts/install-server.sh
index 8e5c066..766ea2d 100755
--- a/scripts/install-server.sh
+++ b/scripts/install-server.sh
@@ -32,7 +32,7 @@ echo "==> 2b. Predictable /dev names for each capture card"
 
 # probe all v4l2 devices, keep only the two GC311 capture cards
 mapfile -t GC_VIDEOS < <(
-    v4l2-ctl --list-devices |
+    sudo v4l2-ctl --list-devices |
         awk '/Live Gamer MINI/{getline; print $1}'
 )