diff --git a/abci/example/orderbook/app.go b/abci/example/orderbook/app.go
index 9b521f30a..d1eabbf76 100644
--- a/abci/example/orderbook/app.go
+++ b/abci/example/orderbook/app.go
@@ -1,14 +1,10 @@
 package orderbook
 
 import (
-	"errors"
-	"fmt"
-
 	"github.com/cosmos/gogoproto/proto"
 	dbm "github.com/tendermint/tm-db"
 
 	"github.com/tendermint/tendermint/abci/types"
-	"github.com/tendermint/tendermint/crypto/ed25519"
 )
 
 var _ types.Application = (*StateMachine)(nil)
@@ -191,110 +187,3 @@ func (sm *StateMachine) ProcessProposal(req types.RequestProcessProposal) types.
 	return types.ResponseProcessProposal{
 		Status: types.ResponseProcessProposal_ACCEPT}
 }
-
-func (msg *MsgBid) ValidateBasic() error {
-	if err := msg.BidOrder.ValidateBasic(); err != nil {
-		return err
-	}
-
-	if err := msg.Pair.ValidateBasic(); err != nil {
-		return err
-	}
-
-	if len(msg.BidOrder.Signature) != ed25519.SignatureSize {
-		return errors.New("invalid signature size")
-	}
-
-	//quantity to be more than 0
-	// price to not be 0
-
-	return nil
-}
-
-func (msg *MsgAsk) ValidateBasic() error {
-	if err := msg.AskOrder.ValidateBasic(); err != nil {
-		return err
-	}
-
-	if err := msg.Pair.ValidateBasic(); err != nil {
-		return err
-	}
-
-	if len(msg.AskOrder.Signature) != ed25519.SignatureSize {
-		return errors.New("invalid signature size")
-	}
-
-
-	//quantity to be more than 0
-	// price to not be 0
-
-	return nil
-}
-
-func (msg *MsgCreateAccount) ValidateBasic() error {
-	if len(msg.PublicKey) != ed25519.PubKeySize {
-		return errors.New("invalid pub key size")
-	}
-
-	uniqueMap := make(map[string]struct{}, len(msg.Commodities))
-	for _, c := range msg.Commodities {
-		if err := c.ValidateBasic(); err != nil {
-			return err
-		}
-
-		if _, ok := uniqueMap[c.Denom]; ok {
-			return fmt.Errorf("commodity %s declared twice", c.Denom)
-		}
-		uniqueMap[c.Denom] = struct{}{}
-	}
-
-	return nil
-}
-
-func (msg *MsgRegisterPair) ValidateBasic() error {
-	return msg.Pair.ValidateBasic()
-}
-
-func (c *Commodity) ValidateBasic() error {
-	if c.Quantity <= 0 {
-		return errors.New("quantity must be greater than zero")
-	}
-
-	return nil
-}
-
-func (p *Pair) ValidateBasic() error {
-	if p.BuyersDenomination == "" || p.SellersDenomination == "" {
-		return errors.New("inbound and outbound commodities must be present")
-	}
-
-	if p.BuyersDenomination == p.SellersDenomination {
-		return errors.New("commodities must not be the same")
-	}
-
-	return nil
-}
-
-func (o *OrderBid) ValidateBasic() error {
-	if o.MaxQuantity == 0 {
-		return errors.New("quantity outbound must be non zero")
-	}
-
-	if o.MaxPrice <= 0 {
-		return errors.New("min price must be greater than 0")
-	}
-
-	return nil
-}
-
-func (o *OrderAsk) ValidateBasic() error {
-	if o.Quantity == 0 {
-		return errors.New("quantity outbound must be non zero")
-	}
-
-	if o.AskPrice <= 0 {
-		return errors.New("min price must be greater than 0")
-	}
-
-	return nil
-}
\ No newline at end of file
diff --git a/abci/example/orderbook/types.go b/abci/example/orderbook/types.go
new file mode 100644
index 000000000..d15b55fec
--- /dev/null
+++ b/abci/example/orderbook/types.go
@@ -0,0 +1,115 @@
+package orderbook
+
+import (
+	"errors"
+	"fmt"
+	
+	"github.com/tendermint/tendermint/crypto/ed25519"
+)
+
+func (msg *MsgBid) ValidateBasic() error {
+	if err := msg.BidOrder.ValidateBasic(); err != nil {
+		return err
+	}
+
+	if err := msg.Pair.ValidateBasic(); err != nil {
+		return err
+	}
+
+	if len(msg.BidOrder.Signature) != ed25519.SignatureSize {
+		return errors.New("invalid signature size")
+	}
+
+	//quantity to be more than 0
+	// price to not be 0
+
+	return nil
+}
+
+func (msg *MsgAsk) ValidateBasic() error {
+	if err := msg.AskOrder.ValidateBasic(); err != nil {
+		return err
+	}
+
+	if err := msg.Pair.ValidateBasic(); err != nil {
+		return err
+	}
+
+	if len(msg.AskOrder.Signature) != ed25519.SignatureSize {
+		return errors.New("invalid signature size")
+	}
+
+
+	//quantity to be more than 0
+	// price to not be 0
+
+	return nil
+}
+
+func (msg *MsgCreateAccount) ValidateBasic() error {
+	if len(msg.PublicKey) != ed25519.PubKeySize {
+		return errors.New("invalid pub key size")
+	}
+
+	uniqueMap := make(map[string]struct{}, len(msg.Commodities))
+	for _, c := range msg.Commodities {
+		if err := c.ValidateBasic(); err != nil {
+			return err
+		}
+
+		if _, ok := uniqueMap[c.Denom]; ok {
+			return fmt.Errorf("commodity %s declared twice", c.Denom)
+		}
+		uniqueMap[c.Denom] = struct{}{}
+	}
+
+	return nil
+}
+
+func (msg *MsgRegisterPair) ValidateBasic() error {
+	return msg.Pair.ValidateBasic()
+}
+
+func (c *Commodity) ValidateBasic() error {
+	if c.Quantity <= 0 {
+		return errors.New("quantity must be greater than zero")
+	}
+
+	return nil
+}
+
+func (p *Pair) ValidateBasic() error {
+	if p.BuyersDenomination == "" || p.SellersDenomination == "" {
+		return errors.New("inbound and outbound commodities must be present")
+	}
+
+	if p.BuyersDenomination == p.SellersDenomination {
+		return errors.New("commodities must not be the same")
+	}
+
+	return nil
+}
+
+func (o *OrderBid) ValidateBasic() error {
+	if o.MaxQuantity == 0 {
+		return errors.New("quantity outbound must be non zero")
+	}
+
+	if o.MaxPrice <= 0 {
+		return errors.New("min price must be greater than 0")
+	}
+
+	return nil
+}
+
+func (o *OrderAsk) ValidateBasic() error {
+	if o.Quantity == 0 {
+		return errors.New("quantity outbound must be non zero")
+	}
+
+	if o.AskPrice <= 0 {
+		return errors.New("min price must be greater than 0")
+	}
+
+	return nil
+}
\ No newline at end of file