diff --git a/test/shell.d/audio-output-sink-test.sh b/test/shell.d/audio-output-sink-test.sh
index 5b7505bf..1ff5f7c1 100755
--- a/test/shell.d/audio-output-sink-test.sh
+++ b/test/shell.d/audio-output-sink-test.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
 
-source "$(dirname "$0")/base-test.sh"
+set -euo pipefail
+
+source "$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)/base-test.sh"
 
 test_home=$(mktemp -d)
 test_bin=$(mktemp -d)