diff --git a/ethclient/simulated/backend.go b/ethclient/simulated/backend.go
index d573c7e750..160ad924bf 100644
--- a/ethclient/simulated/backend.go
+++ b/ethclient/simulated/backend.go
@@ -86,6 +86,8 @@ func NewBackend(alloc types.GenesisAlloc, options ...func(nodeConf *node.Config,
 	}
 	ethConf.SyncMode = ethconfig.FullSync
 	ethConf.TxPool.NoLocals = true
+	// Disable log indexing to force unindexed log search
+	ethConf.LogNoHistory = true
 
 	for _, option := range options {
 		option(&nodeConf, &ethConf)