diff --git a/docs/resources/client-start-help b/docs/resources/client-start-help
index 72084c484b..281322b52d 100644
--- a/docs/resources/client-start-help
+++ b/docs/resources/client-start-help
@@ -25,7 +25,7 @@ Flags:
       --tbtc.preParamsGenerationTimeout duration    tECDSA pre-parameters generation timeout. (default 2m0s)
       --tbtc.preParamsGenerationDelay duration      tECDSA pre-parameters generation delay. (default 10s)
       --tbtc.preParamsGenerationConcurrency int     tECDSA pre-parameters generation concurrency. (default 1)
-      --tbtc.keyGenerationConcurrency int           tECDSA key generation concurrency. (default 16)
+      --tbtc.keyGenerationConcurrency int           tECDSA key generation concurrency. (default number of cores)
       --developer.bridgeAddress string              Address of the Bridge smart contract
       --developer.lightRelayAddress string          Address of the LightRelay smart contract
       --developer.randomBeaconAddress string        Address of the RandomBeacon smart contract
diff --git a/pkg/chain/ethereum/beacon/gen/_address/RandomBeacon b/pkg/chain/ethereum/beacon/gen/_address/RandomBeacon
index 7daa69d34b..e69de29bb2 100644
--- a/pkg/chain/ethereum/beacon/gen/_address/RandomBeacon
+++ b/pkg/chain/ethereum/beacon/gen/_address/RandomBeacon
@@ -1 +0,0 @@
-0x0000000000000000000000000000000000000000
diff --git a/pkg/chain/ethereum/ecdsa/gen/_address/WalletRegistry b/pkg/chain/ethereum/ecdsa/gen/_address/WalletRegistry
index 7daa69d34b..e69de29bb2 100644
--- a/pkg/chain/ethereum/ecdsa/gen/_address/WalletRegistry
+++ b/pkg/chain/ethereum/ecdsa/gen/_address/WalletRegistry
@@ -1 +0,0 @@
-0x0000000000000000000000000000000000000000
diff --git a/pkg/chain/ethereum/tbtc/gen/_address/Bridge b/pkg/chain/ethereum/tbtc/gen/_address/Bridge
index 7daa69d34b..e69de29bb2 100644
--- a/pkg/chain/ethereum/tbtc/gen/_address/Bridge
+++ b/pkg/chain/ethereum/tbtc/gen/_address/Bridge
@@ -1 +0,0 @@
-0x0000000000000000000000000000000000000000
diff --git a/pkg/chain/ethereum/tbtc/gen/_address/LightRelay b/pkg/chain/ethereum/tbtc/gen/_address/LightRelay
index 7daa69d34b..e69de29bb2 100644
--- a/pkg/chain/ethereum/tbtc/gen/_address/LightRelay
+++ b/pkg/chain/ethereum/tbtc/gen/_address/LightRelay
@@ -1 +0,0 @@
-0x0000000000000000000000000000000000000000
diff --git a/pkg/chain/ethereum/tbtc/gen/_address/WalletCoordinator b/pkg/chain/ethereum/tbtc/gen/_address/WalletCoordinator
index 7daa69d34b..8b13789179 100644
--- a/pkg/chain/ethereum/tbtc/gen/_address/WalletCoordinator
+++ b/pkg/chain/ethereum/tbtc/gen/_address/WalletCoordinator
@@ -1 +1 @@
-0x0000000000000000000000000000000000000000
+
diff --git a/pkg/chain/ethereum/threshold/gen/_address/TokenStaking b/pkg/chain/ethereum/threshold/gen/_address/TokenStaking
index 7daa69d34b..e69de29bb2 100644
--- a/pkg/chain/ethereum/threshold/gen/_address/TokenStaking
+++ b/pkg/chain/ethereum/threshold/gen/_address/TokenStaking
@@ -1 +0,0 @@
-0x0000000000000000000000000000000000000000