diff --git a/CHANGELOG.md b/CHANGELOG.md
index f2f68824ae..96944119e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ FEATURES
 
 IMPROVEMENTS
 * bank module uses go-wire codec instead of 'encoding/json'
+* auth module uses go-wire codec instead of 'encoding/json'
 
 FIXES
 
diff --git a/x/auth/wire.go b/x/auth/wire.go
index 12778bb39b..309464c864 100644
--- a/x/auth/wire.go
+++ b/x/auth/wire.go
@@ -15,4 +15,5 @@ var msgCdc = wire.NewCodec()
 
 func init() {
 	RegisterWire(msgCdc)
+	wire.RegisterCrypto(msgCdc)
 }
diff --git a/x/stake/wire.go b/x/stake/wire.go
index b6df323c3c..fb1a1c8867 100644
--- a/x/stake/wire.go
+++ b/x/stake/wire.go
@@ -15,5 +15,6 @@ func RegisterWire(cdc *wire.Codec) {
 var msgCdc = wire.NewCodec()
 
 func init() {
+	RegisterWire(msgCdc)
 	wire.RegisterCrypto(msgCdc)
 }