diff --git a/eth/backend.go b/eth/backend.go
index df4175a3de..81b794283e 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -229,6 +229,7 @@ func New(stack *node.Node, config *ethconfig.Config) (*Ethereum, error) {
 			TrieTimeLimit:       config.TrieTimeout,
 			SnapshotLimit:       config.SnapshotCache,
 			Preimages:           config.Preimages,
+			TriesInMemory:       config.TriesInMemory,
 		}
 	)