diff --git a/CHANGELOG.md b/CHANGELOG.md
index 91ca28b567eb..87a485254050 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -38,6 +38,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### Bug Fixes
 
+* (simapp) [\#8418](https://github.com/cosmos/cosmos-sdk/pull/8418) Add balance coin to supply when adding a new genesis account
 * (x/bank) [\#8417](https://github.com/cosmos/cosmos-sdk/pull/8417) Validate balances and coin denom metadata on genesis
 
 ## [v0.40.1](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.40.1) - 2021-01-19
diff --git a/simapp/simd/cmd/genaccounts.go b/simapp/simd/cmd/genaccounts.go
index dc6925120e8d..57de144c36b4 100644
--- a/simapp/simd/cmd/genaccounts.go
+++ b/simapp/simd/cmd/genaccounts.go
@@ -151,6 +151,7 @@ contain valid denominations. Accounts may optionally be supplied with vesting pa
 			bankGenState := banktypes.GetGenesisStateFromAppState(depCdc, appState)
 			bankGenState.Balances = append(bankGenState.Balances, balances)
 			bankGenState.Balances = banktypes.SanitizeGenesisBalances(bankGenState.Balances)
+			bankGenState.Supply = bankGenState.Supply.Add(balances.Coins...)
 
 			bankGenStateBz, err := cdc.MarshalJSON(bankGenState)
 			if err != nil {