diff --git a/.dev-tools/install-nginx-3.sh b/.dev-tools/install-nginx-3.sh
index 17b2b801b..62b81db60 100755
--- a/.dev-tools/install-nginx-3.sh
+++ b/.dev-tools/install-nginx-3.sh
@@ -234,6 +234,7 @@ activateLatestBlacklist
 runsetupngxblocker1
 reloadNginX
 waitforReload
+backupConfFiles
 
 # ----------------------
 # Exit With Error Number