diff --git a/driver/generic.go b/driver/generic.go
index bbe668a..ec0c078 100644
--- a/driver/generic.go
+++ b/driver/generic.go
@@ -3,14 +3,14 @@ package driver
 import (
 	"encoding/json"
 	"fmt"
-	"git.xdrm.io/go/aicra/err"
+	e "git.xdrm.io/go/aicra/err"
 	"git.xdrm.io/go/aicra/response"
 	"os/exec"
 	"strings"
 )
 
 // Load implements the Driver interface
-func (d *Generic) Load(_path []string, _method string) (func(response.Arguments) response.Response, err.Error) {
+func (d *Generic) Load(_path []string, _method string) (func(response.Arguments) response.Response, e.Error) {
 
 	/* (1) Build controller path */
 	path := strings.Join(_path, "-")
@@ -29,42 +29,42 @@ func (d *Generic) Load(_path []string, _method string) (func(response.Arguments)
 
 		/* (1) Prepare stdin data */
 		d["_HTTP_METHOD_"] = method
-		stdin, err2 := json.Marshal(d)
-		if err2 != nil {
-			res.Err = err.UncallableController
+		stdin, err := json.Marshal(d)
+		if err != nil {
+			res.Err = e.UncallableController
 			return *res
 		}
 
 		/* (2) Try to load command with <stdin> -> stdout */
 		cmd := exec.Command(path, string(stdin))
 
-		stdout, err2 := cmd.Output()
-		if err2 != nil {
-			res.Err = err.UncallableController
+		stdout, err := cmd.Output()
+		if err != nil {
+			res.Err = e.UncallableController
 			return *res
 		}
 
 		/* (3) Get output json */
 		var outputI interface{}
-		err2 = json.Unmarshal(stdout, &outputI)
-		if err2 != nil {
-			res.Err = err.UncallableController
+		err = json.Unmarshal(stdout, &outputI)
+		if err != nil {
+			res.Err = e.UncallableController
 			return *res
 		}
 
 		output, ok := outputI.(map[string]interface{})
 		if !ok {
-			res.Err = err.UncallableController
+			res.Err = e.UncallableController
 			return *res
 		}
 
-		res.Err = err.Success
+		res.Err = e.Success
 
 		// extract error (success by default or on error)
 		if outErr, ok := output["error"]; ok {
 			errCode, ok := outErr.(float64)
 			if ok {
-				res.Err = err.Error{int(errCode), "unknown reason", nil}
+				res.Err = e.Error{int(errCode), "unknown reason", nil}
 			}
 
 			delete(output, "error")
@@ -77,5 +77,5 @@ func (d *Generic) Load(_path []string, _method string) (func(response.Arguments)
 
 		return *res
 
-	}, err.Success
+	}, e.Success
 }