diff --git a/scripts/docker_common.sh b/scripts/docker_common.sh
index a3638c65..0768af51 100755
--- a/scripts/docker_common.sh
+++ b/scripts/docker_common.sh
@@ -33,7 +33,7 @@ if [ "${DOCKER_CREATE_ONLY}" != "1" ]; then
     --env MY_NUM_JOBS=${NUM_JOBS} \
     --name ${DOCKER_CONTAINER} \
     -u $(id -u):$(id -g) \
-    -v /.ci/${PROJECT_NAME}:/.ci/${PROJECT_NAME}:r \
+    -v /.ci/${PROJECT_NAME}:/.ci/${PROJECT_NAME}:ro \
     -v ${PROJECT_SOURCE_DIR}:${PROJECT_SOURCE_DIR}:rw,z \
     -w ${PROJECT_SOURCE_DIR} \
     ${DOCKER_TAG} || exit 1