diff --git a/scripts/_common.sh b/scripts/_common.sh
index c851f6e..77186af 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -149,7 +149,7 @@ install_source() {
 
     if $install_on_root; then
         mv "$install_dir"/webapps/xwiki "$install_dir"/webapps/root
-    elif [ "$path" != /root ]; then
+    elif [ "$path" == /root ]; then
         ynh_die --message='Path "/root" not supported'
     elif [ "$path" != /xwiki ]; then
         mv "$install_dir"/webapps/xwiki "$install_dir"/webapps$path
diff --git a/scripts/change_url b/scripts/change_url
index f2812f8..77b52b4 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -30,6 +30,8 @@ ynh_script_progression --message="Updating xwiki configuration..." --weight=1
 if [ $new_path != $old_path ]; then
     if $install_on_root; then
         mv "$install_dir"/webapps$old_path "$install_dir"/webapps/root
+    elif [ "$path" == /root ]; then
+        ynh_die --message='Path "/root" not supported'
     elif [ $old_path == / ]; then
         mv "$install_dir"/webapps/root "$install_dir"/webapps$new_path
     else