diff --git a/js/mzta-utils.js b/js/mzta-utils.js
index b044d2db..b8d1b4ac 100644
--- a/js/mzta-utils.js
+++ b/js/mzta-utils.js
@@ -587,7 +587,7 @@ const insertHtml = function (replyHtml, fullBody_string) {
   return fullBody.body.innerHTML;
 }
 
-export async function getCustomPromptsUsedSpace(){
+export async function getLocalStorageUsedSpace(){
   // we can't use this, see: https://bugzilla.mozilla.org/show_bug.cgi?id=1385832
   //let customprompts_space = await browser.storage.local.getBytesInUse("_custom_prompt");
   //let's use a workaround
diff --git a/pages/customprompts/mzta-custom-prompts.js b/pages/customprompts/mzta-custom-prompts.js
index 3b3bbeb2..faecf19b 100644
--- a/pages/customprompts/mzta-custom-prompts.js
+++ b/pages/customprompts/mzta-custom-prompts.js
@@ -18,7 +18,7 @@
 
 import { prefs_default } from "../../options/mzta-options-default.js";
 import { getPrompts, setDefaultPromptsProperties, setCustomPrompts, preparePromptsForExport, preparePromptsForImport } from "../../js/mzta-prompts.js";
-import { ChatGPTWeb_models, isThunderbird128OrGreater, getCustomPromptsUsedSpace, sanitizeHtml, validateCustomData_ChatGPTWeb, getChatGPTWebModelsList_HTML } from "../../js/mzta-utils.js";
+import { ChatGPTWeb_models, isThunderbird128OrGreater, getLocalStorageUsedSpace, sanitizeHtml, validateCustomData_ChatGPTWeb, getChatGPTWebModelsList_HTML } from "../../js/mzta-utils.js";
 import { taLogger } from "../../js/mzta-logger.js";
 import { getPlaceholders } from "../../js/mzta-placeholders.js";
 import { textareaAutocomplete } from "../../js/mzta-placeholders-autocomplete.js";
@@ -936,7 +936,7 @@ function clearMessage() {
 }
 
 async function setStorageSpace() {
-    let storage_space = await getCustomPromptsUsedSpace();
+    let storage_space = await getLocalStorageUsedSpace();
     document.getElementById('storage_space').textContent = storage_space;
 }