diff --git a/public/scripts/preset-manager.js b/public/scripts/preset-manager.js
index cdff9501c..fc2f9e86f 100644
--- a/public/scripts/preset-manager.js
+++ b/public/scripts/preset-manager.js
@@ -36,7 +36,7 @@ import {
     textgenerationwebui_presets,
     textgenerationwebui_settings as textgen_settings,
 } from './textgen-settings.js';
-import { download, parseJsonFile, waitUntilCondition } from './utils.js';
+import { download, equalsIgnoreCaseAndAccents, parseJsonFile, waitUntilCondition } from './utils.js';
 import { t } from './i18n.js';
 import { reasoning_templates } from './reasoning.js';
 
@@ -454,6 +454,9 @@ class PresetManager {
 
     async renamePreset(newName) {
         const oldName = this.getSelectedPresetName();
+        if (equalsIgnoreCaseAndAccents(oldName, newName)) {
+            throw new Error('New name must be different from old name');
+        }
         try {
             await this.savePreset(newName);
             await this.deletePreset(oldName);
@@ -892,6 +895,10 @@ export async function initPresetManager() {
             console.debug(!presetManager.isAdvancedFormatting() ? 'Preset rename cancelled' : 'Template rename cancelled');
             return;
         }
+        if (equalsIgnoreCaseAndAccents(oldName, newName)) {
+            console.warn('Preset name is the same (ignoring case and accents)');
+            return;
+        }
 
         await presetManager.renamePreset(newName);