diff --git a/types/evidence.go b/types/evidence.go
index d4916e32a..9e1f6af0e 100644
--- a/types/evidence.go
+++ b/types/evidence.go
@@ -80,13 +80,13 @@ func (evl EvidenceList) Has(evidence Evidence) bool {
 //-------------------------------------------
 
 const (
-	wireTypeEvidenceDuplicateVote = "com.tendermint.types.evidence.duplicate_vote"
+	evidenceTypeDuplicateVote = byte(0x01)
 )
 
-func init() {
-	wire.RegisterInterface((*Evidence)(nil), nil)
-	wire.RegisterConcrete(&DuplicateVoteEvidence{}, wireTypeEvidenceDuplicateVote, nil)
-}
+var _ = wire.RegisterInterface(
+	struct{ Evidence }{},
+	wire.ConcreteType{&DuplicateVoteEvidence{}, evidenceTypeDuplicateVote},
+)
 
 //-------------------------------------------
 
diff --git a/wire/wire.go b/wire/wire.go
index 255e66538..9d0d2c208 100644
--- a/wire/wire.go
+++ b/wire/wire.go
@@ -36,6 +36,14 @@ func UnmarshalJSON(jsonBz []byte, ptr interface{}) error {
 	return wire.UnmarshalJSON(jsonBz, ptr)
 }
 
+type ConcreteType = wire.ConcreteType
+
+func RegisterInterface(o interface{}, ctypes ...ConcreteType) *wire.TypeInfo {
+	return wire.RegisterInterface(o, ctypes...)
+}
+
+const RFC3339Millis = wire.RFC3339Millis
+
 /*
 
 func RegisterInterface(ptr interface{}, opts *wire.InterfaceOptions) {