diff --git a/installers/common.sh b/installers/common.sh
index 4d0fc67c..fcd4ea5d 100644
--- a/installers/common.sh
+++ b/installers/common.sh
@@ -641,17 +641,16 @@ function _download_latest_files() {
     if [ -d "$webroot_dir" ] && [ "$update" == 0 ]; then
         sudo mv $webroot_dir "$webroot_dir.`date +%F-%R`" || _install_status 1 "Unable to move existing webroot directory"
     elif [ "$upgrade" == 1 ] || [ "$update" == 1 ]; then
-        exclude='--exclude=ajax/system/sys_read_logfile.php'
-
         # Preserve user plugins temporarily
         if [ -d "$webroot_dir/plugins" ]; then
             sudo cp -r "$webroot_dir/plugins" "/tmp/raspap-user-plugins"
         fi
 
-        shopt -s extglob
-
-        sudo find "$webroot_dir" -mindepth 1 ! -path "${webroot_dir}/ajax" ! -path "${webroot_dir}/ajax/*" ! -path "${webroot_dir}/plugins" ! -path "${webroot_dir}/plugins/*" -delete 2>/dev/null
-        sudo find "$webroot_dir/ajax" ! -path "${webroot_dir}/ajax/system/sys_read_logfile.php" -delete 2>/dev/null
+        sudo find "$webroot_dir" -mindepth 1 \
+          ! -path "${webroot_dir}/ajax/system/sys_read_logfile.php" \
+          ! -path "${webroot_dir}/plugins" \
+          ! -path "${webroot_dir}/plugins/*" \
+          -delete 2>/dev/null
 
         # Remove plugins to permit clean rsync
         sudo rm -rf "$webroot_dir/plugins"
@@ -663,7 +662,6 @@ function _download_latest_files() {
     # Restore user plugins after rsync
     if [ "$upgrade" == 1 ] || [ "$update" == 1 ]; then
         if [ -d "/tmp/raspap-user-plugins" ]; then
-            # Exclude root-level files like manifest.json
             sudo find /tmp/raspap-user-plugins -mindepth 1 -maxdepth 1 -type d -exec cp -r {} "$webroot_dir/plugins/" \; 2>/dev/null
             sudo rm -rf "/tmp/raspap-user-plugins"
         fi