diff --git a/x/rollapp/client/cli/tx_create_rollapp.go b/x/rollapp/client/cli/tx_create_rollapp.go
index 9783c3910..0d6ada235 100644
--- a/x/rollapp/client/cli/tx_create_rollapp.go
+++ b/x/rollapp/client/cli/tx_create_rollapp.go
@@ -91,8 +91,8 @@ func parseGenesisInfo(cmd *cobra.Command) (types.GenesisInfo, error) {
 		return types.GenesisInfo{}, err
 	}
 
-	genesisInfo.NativeDenom = new(types.DenomMetadata)
 	if nativeDenomFlag != "" {
+		genesisInfo.NativeDenom = new(types.DenomMetadata)
 		if err = utils.ParseJsonFromFile(nativeDenomFlag, genesisInfo.NativeDenom); err != nil {
 			return types.GenesisInfo{}, err
 		}
diff --git a/x/rollapp/types/message_create_rollapp_test.go b/x/rollapp/types/message_create_rollapp_test.go
index 11cbb71e1..882b47b3a 100644
--- a/x/rollapp/types/message_create_rollapp_test.go
+++ b/x/rollapp/types/message_create_rollapp_test.go
@@ -255,7 +255,7 @@ func TestMsgCreateRollapp_ValidateBasic(t *testing.T) {
 					Bech32Prefix:    bech32Prefix,
 					GenesisChecksum: "checksum",
 					NativeDenom:     &DenomMetadata{Display: "DEN", Base: "aden", Exponent: 18},
-					InitialSupply:   sdk.Int{},
+					InitialSupply:   sdk.NewInt(-1),
 				},
 			},
 			err: ErrInvalidInitialSupply,
diff --git a/x/rollapp/types/rollapp.go b/x/rollapp/types/rollapp.go
index 53ea238a1..bcea125ce 100644
--- a/x/rollapp/types/rollapp.go
+++ b/x/rollapp/types/rollapp.go
@@ -106,15 +106,13 @@ func (r GenesisInfo) Validate() error {
 		return errorsmod.Wrap(ErrInvalidGenesisChecksum, "GenesisChecksum")
 	}
 
-	if r.NativeDenom == nil {
-		return errorsmod.Wrap(ErrInvalidNativeDenom, "NativeDenom")
-	}
-
-	if err := r.NativeDenom.Validate(); err != nil {
-		return errorsmod.Wrap(ErrInvalidNativeDenom, err.Error())
+	if r.NativeDenom != nil {
+		if err := r.NativeDenom.Validate(); err != nil {
+			return errorsmod.Wrap(ErrInvalidNativeDenom, err.Error())
+		}
 	}
 
-	if r.InitialSupply.IsNil() {
+	if !r.InitialSupply.IsNil() && r.InitialSupply.IsNegative() {
 		return errorsmod.Wrap(ErrInvalidInitialSupply, "InitialSupply")
 	}