diff --git a/client-sdk/go/config/network.go b/client-sdk/go/config/network.go
index ed96ce0499..2557902132 100644
--- a/client-sdk/go/config/network.go
+++ b/client-sdk/go/config/network.go
@@ -3,7 +3,6 @@ package config
 import (
 	"fmt"
 	"net/url"
-	"strings"
 
 	"github.com/oasisprotocol/oasis-core/go/common/crypto/hash"
 )
@@ -136,8 +135,3 @@ func (n *Network) Validate() error {
 
 	return nil
 }
-
-// IsLocalRPC checks whether the RPC endpoint points to a local UNIX socket.
-func (n *Network) IsLocalRPC() bool {
-	return strings.HasPrefix(n.RPC, "unix:")
-}
diff --git a/client-sdk/go/connection/connection.go b/client-sdk/go/connection/connection.go
index afa2ebc4d0..8cb31d091b 100644
--- a/client-sdk/go/connection/connection.go
+++ b/client-sdk/go/connection/connection.go
@@ -105,7 +105,7 @@ func Connect(ctx context.Context, net *config.Network) (Connection, error) {
 // omitting the chain context check.
 func ConnectNoVerify(_ context.Context, net *config.Network) (Connection, error) {
 	var dialOpts []grpc.DialOption
-	switch net.IsLocalRPC() {
+	switch cmnGrpc.IsLocalAddress(net.RPC) {
 	case true:
 		// No TLS needed for local nodes.
 		dialOpts = append(dialOpts, grpc.WithTransportCredentials(insecure.NewCredentials()))