diff --git a/src/helper/config.ts b/src/helper/config.ts
index 626e7f5f..69aee86e 100644
--- a/src/helper/config.ts
+++ b/src/helper/config.ts
@@ -82,7 +82,7 @@ const configDefaults: ConfigFullModel = {
   },
 };
 export class Config {
-  private static instance: Config;
+  private static instance: Config | undefined;
   public config: ConfigFullModel;
   private constructor (config?: Partial<ConfigModel>) {
     this.config = {
@@ -127,4 +127,8 @@ export class Config {
 
     return Config.instance;
   }
+
+  public destroy = (): void => {
+    Config.instance = undefined;
+  };
 }
diff --git a/src/main.ts b/src/main.ts
index a8cfe3f3..77a6fdbb 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -867,6 +867,7 @@ ${(item.task ? marked.parseInline : marked.parse)(item.text, { breaks: false })
   };
 
   public destroy = (): void => {
+    Config.getInstance().destroy();
     MynahUITabsStore.getInstance().destroy();
     MynahUIGlobalEvents.getInstance().destroy();
     DomBuilder.getInstance().destroy();