diff --git a/mzta-background.js b/mzta-background.js
index 86b43752..98c54181 100644
--- a/mzta-background.js
+++ b/mzta-background.js
@@ -20,7 +20,7 @@ import { mzta_script } from './js/mzta-chatgpt.js';
 import { prefs_default } from './options/mzta-options-default.js';
 import { mzta_Menus } from './js/mzta-menus.js';
 import { taLogger } from './js/mzta-logger.js';
-import { getCurrentIdentity, getOriginalBody, replaceBody, setBody, i18nConditionalGet, generateCallID, migrateCustomPromptsStorage, migrateDefaultPromptsPropStorage, getGPTWebModelString, getTagsList, createTag, assignTagsToMessage, checkIfTagExists, getActiveSpecialPromptsIDs, checkSparksPresence, getMessages, getMailBody, extractJsonObject, contextMenuID_AddTags, contextMenuID_Spamfilter } from './js/mzta-utils.js';
+import { getCurrentIdentity, getOriginalBody, replaceBody, setBody, i18nConditionalGet, generateCallID, migrateCustomPromptsStorage, migrateDefaultPromptsPropStorage, getGPTWebModelString, getTagsList, createTag, assignTagsToMessage, checkIfTagExists, getActiveSpecialPromptsIDs, checkSparksPresence, getMessages, getMailBody, extractJsonObject, contextMenuID_AddTags, contextMenuID_Spamfilter, sanitizeChatGPTModelData } from './js/mzta-utils.js';
 import { taPromptUtils } from './js/mzta-utils-prompt.js';
 import { mzta_specialCommand } from './js/mzta-special-commands.js';
 import { getSpamFilterPrompt } from './js/mzta-prompts.js';
@@ -337,9 +337,9 @@ async function openChatGPT(promptText, action, curr_tabId, prompt_name = '', do_
         if(prefs.chatgpt_web_tempchat){
             call_opt += '&temporary-chat=true';
         }
-
+//TODO
         if(prefs.chatgpt_web_model != ''){
-            call_opt += '&model=' + encodeURIComponent(prefs.chatgpt_web_model).toLowerCase();
+            call_opt += '&model=' + sanitizeChatGPTModelData(prefs.chatgpt_web_model);
         }
 
         taLog.log("[chatgpt_web] call_opt: " + call_opt);