diff --git a/core/state/trie_prefetcher.go b/core/state/trie_prefetcher.go
index 8253fb5153..2c86fdbd18 100644
--- a/core/state/trie_prefetcher.go
+++ b/core/state/trie_prefetcher.go
@@ -252,7 +252,6 @@ func (sf *subfetcher) wait() {
 		return // already exiting
 	}
 	sf.closing = true
-	sf.tasks = nil
 	sf.lock.Unlock()
 	// Notify the prefetcher. The wake-chan is buffered, so this is async.
 	sf.wake <- false