From b0ce49de182afe1e8d8eb80c0a3567350b2434dd Mon Sep 17 00:00:00 2001
From: Javier Viola <363911+pepoviola@users.noreply.github.com>
Date: Tue, 19 Mar 2024 13:30:22 +0100
Subject: [PATCH] add muln(2), as was in the old code (#5829)

---
 packages/api-derive/src/tx/signingInfo.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/api-derive/src/tx/signingInfo.ts b/packages/api-derive/src/tx/signingInfo.ts
index b0ec632bb4..a0fb14e3e7 100644
--- a/packages/api-derive/src/tx/signingInfo.ts
+++ b/packages/api-derive/src/tx/signingInfo.ts
@@ -74,7 +74,7 @@ function babeOrAuraPeriod (api: DeriveApi): BN | undefined {
   const period = api.consts.babe?.expectedBlockTime ||
     // this will be present ones https://github.com/paritytech/polkadot-sdk/pull/3732 is merged
     (api.consts['aura'] as unknown as Aura)?.slotDuration ||
-    api.consts.timestamp?.minimumPeriod;
+    api.consts.timestamp?.minimumPeriod.muln(2);
 
   return !period.isZero() ? period : undefined;
 }