diff --git a/kotlin/kotlin_client.go b/kotlin/kotlin_client.go
index de4810e..4ba8d17 100644
--- a/kotlin/kotlin_client.go
+++ b/kotlin/kotlin_client.go
@@ -36,7 +36,7 @@ const (
 	DefaultMap       = "emptyMap()"
 	DefaultLocalTime = "LocalTime.now()"
 
-	version = "1.0.1"
+	version = "1.0.2"
 )
 
 var (
@@ -259,6 +259,21 @@ func (g *Generator) sortTemplateData(data *templateData) {
 		return data.Methods[i].Name < data.Methods[j].Name
 	})
 
+	// sort errs by erName (it's  a number) because they was located in map
+	for _, m := range data.Methods {
+		sort.Slice(m.Errors, func(i, j int) bool {
+			iNum, err := strconv.Atoi(m.Errors[i].Name)
+			if err != nil {
+				return m.Errors[i].Name < m.Errors[j].Name
+			}
+			jNum, err := strconv.Atoi(m.Errors[j].Name)
+			if err != nil {
+				return m.Errors[i].Name < m.Errors[j].Name
+			}
+			return iNum < jNum
+		})
+	}
+
 	sort.Slice(data.Models, func(i, j int) bool {
 		return data.Models[i].Name < data.Models[j].Name
 	})
diff --git a/kotlin/testdata/arith.go b/kotlin/testdata/arith.go
index 6e9cc87..53ed216 100644
--- a/kotlin/testdata/arith.go
+++ b/kotlin/testdata/arith.go
@@ -44,6 +44,13 @@ type Point struct {
 type SecondPoint struct {
 }
 
+//zenrpc:404 was not found
+//zenrpc:501 example
+//zenrpc:502 given example is different from user's
+//zenrpc:503 failed to create new example
+//zenrpc:504 failed to send example
+//zenrpc:505 given example is invalid
+//zenrpc:506 given example is blocked
 func (as ArithService) GetByID(ctx context.Context, cartId string, categoryId int, baseID int, id int) (*Point, error) {
 	return &Point{}, nil
 }
diff --git a/kotlin/testdata/protocol.generated.kt b/kotlin/testdata/protocol.generated.kt
index 2feb4de..1e2a975 100644
--- a/kotlin/testdata/protocol.generated.kt
+++ b/kotlin/testdata/protocol.generated.kt
@@ -1,4 +1,4 @@
-/// Code generated from jsonrpc schema by rpcgen v2.5.x with kotlin v1.0.1; DO NOT EDIT.
+/// Code generated from jsonrpc schema by rpcgen v2.5.x with kotlin v1.0.2; DO NOT EDIT.
 package api
 
 import com.google.gson.reflect.TypeToken
@@ -109,6 +109,18 @@ interface Api : Transport {
     )
 
     /**
+     *
+     * Коды ошибок:
+     *
+     *    "404": "was not found",
+     *    "501": "example",
+     *    "502": "given example is different from user's",
+     *    "503": "failed to create new example",
+     *    "504": "failed to send example",
+     *    "505": "given example is invalid",
+     *    "506": "given example is blocked",
+     *
+     *
      * @return 
      */
     fun arithGetByID(
diff --git a/kotlin/testdata/rpc.generated.kt b/kotlin/testdata/rpc.generated.kt
index ef61d6c..cdd3039 100644
--- a/kotlin/testdata/rpc.generated.kt
+++ b/kotlin/testdata/rpc.generated.kt
@@ -1,4 +1,4 @@
-/// Code generated from jsonrpc schema by rpcgen v2.5.x with kotlin v1.0.1; DO NOT EDIT.
+/// Code generated from jsonrpc schema by rpcgen v2.5.x with kotlin v1.0.2; DO NOT EDIT.
 package api.model
 
 import java.time.LocalTime
diff --git a/kotlin/testdata/testdata_zenrpc.go b/kotlin/testdata/testdata_zenrpc.go
index 55ff2c8..10160dc 100644
--- a/kotlin/testdata/testdata_zenrpc.go
+++ b/kotlin/testdata/testdata_zenrpc.go
@@ -1,4 +1,4 @@
-// Code generated by zenrpc v2.2.12; DO NOT EDIT.
+// Code generated by zenrpc v2.3.0; DO NOT EDIT.
 
 package testdata
 
@@ -382,6 +382,15 @@ func (ArithService) SMD() smd.ServiceInfo {
 						},
 					},
 				},
+				Errors: map[int]string{
+					404: "was not found",
+					501: "example",
+					502: "given example is different from user's",
+					503: "failed to create new example",
+					504: "failed to send example",
+					505: "given example is invalid",
+					506: "given example is blocked",
+				},
 			},
 			"GetSecondIds": {
 				Parameters: []smd.JSONSchema{},