diff --git a/stuff/quake2-start.sh b/stuff/quake2-start.sh
index 6ac13624..2627f4f4 100755
--- a/stuff/quake2-start.sh
+++ b/stuff/quake2-start.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+set -eu
 
 # PID of "gnome-screensaver-command -i" (if used)
 GSC_PID=""