diff --git a/app/download_manager.py b/app/download_manager.py
index a1a0a1e..30f79af 100644
--- a/app/download_manager.py
+++ b/app/download_manager.py
@@ -75,6 +75,22 @@ class DownloadManager:
             if task.file_path and os.path.exists(task.file_path):
                 os.remove(task.file_path)
 
+    async def delete_task(self, task_id: str):
+        """Completely remove a task from the task list"""
+        task = self.tasks.get(task_id)
+        if task:
+            # Cancel if downloading
+            if task_id in self.active_downloads:
+                self.active_downloads[task_id].cancel()
+                del self.active_downloads[task_id]
+
+            # Delete file if exists
+            if task.file_path and os.path.exists(task.file_path):
+                os.remove(task.file_path)
+
+            # Remove from tasks dict
+            del self.tasks[task_id]
+
     async def _download(self, task: DownloadTask):
         async with self._semaphore:
             try:
diff --git a/main.py b/main.py
index 8a0775e..e827c8e 100644
--- a/main.py
+++ b/main.py
@@ -136,13 +136,13 @@ async def resume_download(task_id: str, background_tasks: BackgroundTasks):
 
 
 @app.delete("/api/download/{task_id}")
-async def cancel_download(task_id: str):
-    """Cancel a download"""
+async def delete_download(task_id: str):
+    """Delete/cancel a download (removes it from the list)"""
     task = download_manager.get_task(task_id)
     if not task:
         raise HTTPException(status_code=404, detail="Task not found")
-    await download_manager.cancel_download(task_id)
-    return {"status": "cancelled"}
+    await download_manager.delete_task(task_id)
+    return {"status": "deleted"}
 
 
 @app.get("/api/download/{task_id}/file")