diff --git a/cli/cmd/tap.go b/cli/cmd/tap.go
index abb10e801..00e59e90a 100644
--- a/cli/cmd/tap.go
+++ b/cli/cmd/tap.go
@@ -33,10 +33,6 @@ Supported protocols are HTTP and gRPC.`,
 			return errors.New("unexpected number of arguments")
 		}
 
-		if err := config.Config.Validate(); err != nil {
-			return errormessage.FormatError(err)
-		}
-
 		if err := config.Config.Tap.Validate(); err != nil {
 			return errormessage.FormatError(err)
 		}
diff --git a/cli/cmd/tapRunner.go b/cli/cmd/tapRunner.go
index e7341cc28..762c1222f 100644
--- a/cli/cmd/tapRunner.go
+++ b/cli/cmd/tapRunner.go
@@ -72,6 +72,14 @@ func RunMizuTap() {
 
 	targetNamespaces := getNamespaces(kubernetesProvider)
 
+	if config.Config.IsNsRestrictedMode() {
+		if len(targetNamespaces) != 1 || !mizu.Contains(targetNamespaces, config.Config.MizuResourcesNamespace) {
+			logger.Log.Errorf("Not supported mode. Mizu can't resolve IPs in other namespaces when running in namespace restricted mode.\n"+
+				"You can use the same namespace for --%s and --%s", configStructs.NamespacesTapName, config.MizuResourcesNamespaceConfigName)
+			return
+		}
+	}
+
 	var namespacesStr string
 	if !mizu.Contains(targetNamespaces, mizu.K8sAllNamespaces) {
 		namespacesStr = fmt.Sprintf("namespaces \"%s\"", strings.Join(targetNamespaces, "\", \""))
diff --git a/cli/config/config.go b/cli/config/config.go
index 4bd8d97f2..e1f66c036 100644
--- a/cli/config/config.go
+++ b/cli/config/config.go
@@ -3,7 +3,6 @@ package config
 import (
 	"errors"
 	"fmt"
-	"github.com/up9inc/mizu/cli/config/configStructs"
 	"github.com/up9inc/mizu/cli/logger"
 	"github.com/up9inc/mizu/cli/mizu"
 	"io/ioutil"
@@ -32,17 +31,6 @@ var (
 	cmdName string
 )
 
-func (config *ConfigStruct) Validate() error {
-	if config.IsNsRestrictedMode() {
-		if config.Tap.AllNamespaces || len(config.Tap.Namespaces) != 1 || config.Tap.Namespaces[0] != config.MizuResourcesNamespace {
-			return fmt.Errorf("Not supported mode. Mizu can't resolve IPs in other namespaces when running in namespace restricted mode.\n"+
-				"You can use the same namespace for --%s and --%s", configStructs.NamespacesTapName, MizuResourcesNamespaceConfigName)
-		}
-	}
-
-	return nil
-}
-
 func InitConfig(cmd *cobra.Command) error {
 	cmdName = cmd.Name()