diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index ffde438d..c96484bd 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -1014,5 +1014,9 @@
   "calendar_opening_dialog_error": {
     "message": "Error opening the calendar event dialog",
     "description": ""
+  },
+  "sparks_not_installed": {
+    "message": "ThunderAI Sparks not installed!",
+    "description": ""
   }
 }
\ No newline at end of file
diff --git a/js/mzta-menus.js b/js/mzta-menus.js
index 23f8130e..efdf6344 100644
--- a/js/mzta-menus.js
+++ b/js/mzta-menus.js
@@ -289,7 +289,7 @@ export class mzta_Menus {
                             }
                         }catch(err){
                             console.error("[ThunderAI] Error opening calendar event dialog: ", JSON.stringify(err));
-                            browser.tabs.sendMessage(tabs[0].id, { command: "sendAlert", curr_tab_type: tabs[0].type, message: browser.i18n.getMessage("calendar_opening_dialog_error") + ": " + "Sparks not installed!" });
+                            browser.tabs.sendMessage(tabs[0].id, { command: "sendAlert", curr_tab_type: tabs[0].type, message: browser.i18n.getMessage("calendar_opening_dialog_error") + ": " + browser.i18n.getMessage("sparks_not_installed") });
                             return {ok:'0'};
                         }
                         break;  // Get a calendar event info - END