diff --git a/types/evidence.go b/types/evidence.go
index 761d3a0e..00c46c59 100644
--- a/types/evidence.go
+++ b/types/evidence.go
@@ -65,7 +65,6 @@ type Evidence interface {
 func RegisterEvidences(cdc *amino.Codec) {
 	cdc.RegisterInterface((*Evidence)(nil), nil)
 	cdc.RegisterConcrete(&DuplicateVoteEvidence{}, "tendermint/DuplicateVoteEvidence", nil)
-	cdc.RegisterConcrete(&MockGoodEvidence{}, "tendermint/MockGoodEvidence", nil)
 }
 
 func RegisterMockEvidences(cdc *amino.Codec) {