diff --git a/cli/multisig.go b/cli/multisig.go
index d00d913b6d2..f6caa6ee034 100644
--- a/cli/multisig.go
+++ b/cli/multisig.go
@@ -1275,7 +1275,7 @@ var msigLockApproveCmd = &cli.Command{
 		params, actErr := actors.SerializeParams(&msig2.LockBalanceParams{
 			StartEpoch:     abi.ChainEpoch(start),
 			UnlockDuration: abi.ChainEpoch(duration),
-			Amount:         abi.NewTokenAmount(amount.Int64()),
+			Amount:         big.Int(amount),
 		})
 
 		if actErr != nil {
@@ -1367,7 +1367,7 @@ var msigLockCancelCmd = &cli.Command{
 		params, actErr := actors.SerializeParams(&msig2.LockBalanceParams{
 			StartEpoch:     abi.ChainEpoch(start),
 			UnlockDuration: abi.ChainEpoch(duration),
-			Amount:         abi.NewTokenAmount(amount.Int64()),
+			Amount:         big.Int(amount),
 		})
 
 		if actErr != nil {