diff --git a/core/state/snapshot/disklayer.go b/core/state/snapshot/disklayer.go
index 98337bea9f..d563b67ca4 100644
--- a/core/state/snapshot/disklayer.go
+++ b/core/state/snapshot/disklayer.go
@@ -51,7 +51,6 @@ type diskLayer struct {
 func (dl *diskLayer) Release() error {
 	if dl.cache != nil {
 		dl.cache.Reset()
-		dl.cache = nil
 	}
 	return nil
 }