diff --git a/install-dat-release.sh b/install-dat-release.sh
index cf96a99..17168c4 100644
--- a/install-dat-release.sh
+++ b/install-dat-release.sh
@@ -67,8 +67,8 @@ check_sum() {
 }
 
 install_file() {
-  install -m 644 "${dir_tmp}"/${file_dlc} "${DAT_PATH}"/${file_site}
-  install -m 644 "${dir_tmp}"/${file_ip} "${DAT_PATH}"/${file_ip}
+  install -p -m 644 "${dir_tmp}"/${file_dlc} "${DAT_PATH}"/${file_site}
+  install -p -m 644 "${dir_tmp}"/${file_ip} "${DAT_PATH}"/${file_ip}
   rm -r "${dir_tmp}"
 }