From 59bcbb4f3337b78e25f3a1545d4fe6d6bc03a855 Mon Sep 17 00:00:00 2001
From: Andrew Ashikhmin <34320705+yperbasis@users.noreply.github.com>
Date: Thu, 28 Jul 2022 18:25:01 +0200
Subject: [PATCH] No TTD mismatch if there's no TTD in chainConfig yet (#4852)

---
 cmd/rpcdaemon22/commands/engine_api.go | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/cmd/rpcdaemon22/commands/engine_api.go b/cmd/rpcdaemon22/commands/engine_api.go
index 4c2aa76ef35..d63d99102e9 100644
--- a/cmd/rpcdaemon22/commands/engine_api.go
+++ b/cmd/rpcdaemon22/commands/engine_api.go
@@ -223,12 +223,7 @@ func (e *EngineImpl) ExchangeTransitionConfigurationV1(ctx context.Context, beac
 	}
 
 	terminalTotalDifficulty := chainConfig.TerminalTotalDifficulty
-
-	if terminalTotalDifficulty == nil {
-		return TransitionConfiguration{}, fmt.Errorf("the execution layer doesn't have a terminal total difficulty. expected: %v", beaconConfig.TerminalTotalDifficulty)
-	}
-
-	if terminalTotalDifficulty.Cmp((*big.Int)(beaconConfig.TerminalTotalDifficulty)) != 0 {
+	if terminalTotalDifficulty != nil && terminalTotalDifficulty.Cmp((*big.Int)(beaconConfig.TerminalTotalDifficulty)) != 0 {
 		return TransitionConfiguration{}, fmt.Errorf("the execution layer has a wrong terminal total difficulty. expected %v, but instead got: %d", beaconConfig.TerminalTotalDifficulty, terminalTotalDifficulty)
 	}