diff --git a/engine/server/application/LoginServer/src/shared/ClientConnection.cpp b/engine/server/application/LoginServer/src/shared/ClientConnection.cpp
index f0cde095..76538e6b 100755
--- a/engine/server/application/LoginServer/src/shared/ClientConnection.cpp
+++ b/engine/server/application/LoginServer/src/shared/ClientConnection.cpp
@@ -196,7 +196,7 @@ void ClientConnection::validateClient(const std::string & id, const std::string
 
 	const char * authURL = ConfigLoginServer::getExternalAuthUrl();
 
-	if (authURL != NULL && authURL != '\0') 
+	if (authURL != NULL && strcmp(authURL, "") != 0) 
 	{
 		CURL *curl;
 		CURLcode res;