diff --git a/src/app-process.ts b/src/app-process.ts
index bedf4ff..8796a59 100644
--- a/src/app-process.ts
+++ b/src/app-process.ts
@@ -48,6 +48,11 @@ export class AppProcess {
   }
 
   public async dispose(): Promise<void> {
+    invariant(
+      !this.controller.signal.aborted,
+      'Failed to dispose of a launched application: already disposed',
+    )
+
     invariant(
       this.io != null,
       'Failed to dispose of a launched application: application is not running. Did you forget to run `await launcher.run()`?',