diff --git a/types/tx_msg.go b/types/tx_msg.go
index d7f15e83f078..42d01fdc55ee 100644
--- a/types/tx_msg.go
+++ b/types/tx_msg.go
@@ -1,8 +1,6 @@
 package types
 
 import (
-	fmt "fmt"
-
 	"github.com/gogo/protobuf/proto"
 
 	cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
@@ -79,5 +77,5 @@ type TxEncoder func(tx Tx) ([]byte, error)
 
 // MsgTypeURL returns the TypeURL of a `sdk.Msg`.
 func MsgTypeURL(msg Msg) string {
-	return fmt.Sprintf("/%s", proto.MessageName(msg))
+	return "/" + proto.MessageName(msg)
 }
diff --git a/types/tx_msg_test.go b/types/tx_msg_test.go
index 7a55c7d63e64..bf7763b02913 100644
--- a/types/tx_msg_test.go
+++ b/types/tx_msg_test.go
@@ -29,3 +29,7 @@ func (s *testMsgSuite) TestMsg() {
 	s.Require().Nil(msg.ValidateBasic())
 	s.Require().NotPanics(func() { msg.GetSignBytes() })
 }
+
+func (s *testMsgSuite) TestMsgTypeURL() {
+	s.Require().Equal("/testdata.TestMsg", sdk.MsgTypeURL(new(testdata.TestMsg)))
+}