diff --git a/client/socket.go b/client/socket.go
index 1bb14db..ffa52de 100644
--- a/client/socket.go
+++ b/client/socket.go
@@ -1,6 +1,7 @@
 package client
 
 import (
+	"fmt"
 	"io"
 	"net"
 	"net/http"
@@ -169,6 +170,9 @@ func NewSocket(sb SocketBuilder, parentContext cuc.Context) (Socket, error) {
 	d.Jar = sb.GetRequestCookie()
 
 	url := sb.GetURL()
+	if "" == url {
+		return nil, fmt.Errorf("Client Socket: URL of server must be specified")
+	}
 	reqHeader := sb.GetRequestHeader()
 
 	conn, res, err := d.Dial(url, reqHeader)
diff --git a/client/socket_builders.go b/client/socket_builders.go
index b10d7d0..58b245d 100644
--- a/client/socket_builders.go
+++ b/client/socket_builders.go
@@ -7,7 +7,6 @@ import (
 	"net/url"
 	"time"
 
-	"git.loafle.net/commons_go/logging"
 	cuc "git.loafle.net/commons_go/util/context"
 	cwf "git.loafle.net/commons_go/websocket_fasthttp"
 )
@@ -84,10 +83,6 @@ func (sb *SocketBuilders) GetWriteBufferSize() int {
 }
 
 func (sb *SocketBuilders) Validate() {
-	if "" == sb.URL {
-		logging.Logger().Panic("Client Socket: URL must be specified")
-	}
-
 	if 0 >= sb.HandshakeTimeout {
 		sb.HandshakeTimeout = cwf.DefaultHandshakeTimeout
 	}