diff --git a/tests/prod/08-test-custom-user-scripts.sh b/tests/prod/08-test-custom-user-scripts.sh
new file mode 100755
index 00000000..63f70175
--- /dev/null
+++ b/tests/prod/08-test-custom-user-scripts.sh
@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+
+set -e
+set -u
+set -o pipefail
+
+CWD="$(cd -P -- "$(dirname -- "$0")" && pwd -P)"
+
+IMAGE="${1}"
+VERSION="${2}"
+FLAVOUR="${3}"
+
+# shellcheck disable=SC1090
+. "${CWD}/../.lib.sh"
+
+
+
+############################################################
+# Tests
+############################################################
+
+###
+### Check if PHP still starts up with working scripts
+###
+RUN_SH_HOST="$( mktemp -d )"
+RUN_SH_CONT="/startup.d"
+
+# Fix mount permissions
+chmod 0777 "${RUN_SH_HOST}"
+
+# Add a startup script to execute
+printf "#!/bin/bash\\necho 'abcdefghijklmnopq';\\n" > "${RUN_SH_HOST}/myscript1.sh"
+chmod +x "${RUN_SH_HOST}/myscript1.sh"
+
+# Start PHP-FPM
+did="$( docker_run "${IMAGE}:${VERSION}-${FLAVOUR}" "-e DEBUG_ENTRYPOINT=2 -e NEW_UID=$(id -u) -e NEW_GID=$(id -g) -v ${RUN_SH_HOST}:${RUN_SH_CONT}" )"
+
+# Wait for both containers to be up and running
+run "sleep 10"
+
+# Check entrypoint for script run
+if ! run "docker logs ${did} | grep 'myscript1.sh'"; then
+	docker_logs "${did}"  || true
+	docker_stop "${did}"  || true
+	rm -rf "${RUN_SH_HOST}"
+	echo "Failed"
+	exit 1
+fi
+
+# Check entrypoint for script output
+if ! run "docker logs ${did} | grep 'abcdefghijklmnopq'"; then
+	docker_logs "${did}"  || true
+	docker_stop "${did}"  || true
+	rm -rf "${RUN_SH_HOST}"
+	echo "Failed"
+	exit 1
+fi
+
+
+# Cleanup
+docker_stop "${did}"
+rm -rf "${RUN_SH_HOST}"