diff --git a/types/codetype.go b/types/codetype.go
new file mode 100644
index 00000000..5355a498
--- /dev/null
+++ b/types/codetype.go
@@ -0,0 +1,35 @@
+package types
+
+const (
+	CodeTypeOK uint32 = 0
+)
+
+// IsOK returns true if Code is OK.
+func (r ResponseCheckTx) IsOK() bool {
+	return r.Code == CodeTypeOK
+}
+
+// IsErr returns true if Code is something other than OK.
+func (r ResponseCheckTx) IsErr() bool {
+	return r.Code != CodeTypeOK
+}
+
+// IsOK returns true if Code is OK.
+func (r ResponseDeliverTx) IsOK() bool {
+	return r.Code == CodeTypeOK
+}
+
+// IsErr returns true if Code is something other than OK.
+func (r ResponseDeliverTx) IsErr() bool {
+	return r.Code != CodeTypeOK
+}
+
+// IsOK returns true if Code is OK.
+func (r ResponseQuery) IsOK() bool {
+	return r.Code == CodeTypeOK
+}
+
+// IsErr returns true if Code is something other than OK.
+func (r ResponseQuery) IsErr() bool {
+	return r.Code != CodeTypeOK
+}
diff --git a/types/result.go b/types/json.go
similarity index 76%
rename from types/result.go
rename to types/json.go
index dbf409f4..dbd7f061 100644
--- a/types/result.go
+++ b/types/json.go
@@ -7,40 +7,6 @@ import (
 	"github.com/gogo/protobuf/jsonpb"
 )
 
-const (
-	CodeTypeOK uint32 = 0
-)
-
-// IsOK returns true if Code is OK.
-func (r ResponseCheckTx) IsOK() bool {
-	return r.Code == CodeTypeOK
-}
-
-// IsErr returns true if Code is something other than OK.
-func (r ResponseCheckTx) IsErr() bool {
-	return r.Code != CodeTypeOK
-}
-
-// IsOK returns true if Code is OK.
-func (r ResponseDeliverTx) IsOK() bool {
-	return r.Code == CodeTypeOK
-}
-
-// IsErr returns true if Code is something other than OK.
-func (r ResponseDeliverTx) IsErr() bool {
-	return r.Code != CodeTypeOK
-}
-
-// IsOK returns true if Code is OK.
-func (r ResponseQuery) IsOK() bool {
-	return r.Code == CodeTypeOK
-}
-
-// IsErr returns true if Code is something other than OK.
-func (r ResponseQuery) IsErr() bool {
-	return r.Code != CodeTypeOK
-}
-
 //---------------------------------------------------------------------------
 // override JSON marshalling so we dont emit defaults (ie. disable omitempty)
 // note we need Unmarshal functions too because protobuf had the bright idea