diff --git a/src/seqta/ui/ThemeCreator.ts b/src/seqta/ui/ThemeCreator.ts
index 1f6731bf..3dc45f90 100644
--- a/src/seqta/ui/ThemeCreator.ts
+++ b/src/seqta/ui/ThemeCreator.ts
@@ -5,6 +5,8 @@ import browser from "webextension-polyfill";
  * @returns void
  */
 export function OpenThemeCreator() {
+  CloseThemeCreator();
+  
   const width = '310px';
 
   const themeCreatorIframe: HTMLIFrameElement = document.createElement('iframe');