diff --git a/build/params_shared_vals.go b/build/params_shared_vals.go
index 4ecb31054..1c31cbe54 100644
--- a/build/params_shared_vals.go
+++ b/build/params_shared_vals.go
@@ -60,7 +60,7 @@ const WinningPoStSectorSetLookback = abi.ChainEpoch(10)
 // Devnet settings
 
 const TotalFilecoin = uint64(2_000_000_000)
-const MiningRewardTotal = uint64(1_900_000_000)
+const MiningRewardTotal = uint64(1_100_000_000)
 
 const FilecoinPrecision = uint64(1_000_000_000_000_000_000)
 
diff --git a/chain/vm/runtime.go b/chain/vm/runtime.go
index aade7a911..f34f13e4b 100644
--- a/chain/vm/runtime.go
+++ b/chain/vm/runtime.go
@@ -72,7 +72,7 @@ func (rt *Runtime) TotalFilCircSupply() abi.TokenAmount {
 		rt.Abortf(exitcode.ErrIllegalState, "failed to get reward actor for computing total supply: %s", err)
 	}
 
-	filMined := types.BigSub(types.FromFil(build.TotalFilecoin), rew.Balance)
+	filMined := types.BigSub(types.FromFil(build.MiningRewardTotal), rew.Balance)
 
 	burnt, err := rt.state.GetActor(builtin.BurntFundsActorAddr)
 	if err != nil {