diff --git a/src/network/socket/qnativesocketengine_p.h b/src/network/socket/qnativesocketengine_p.h
index 4d1d8e1eb1..08e72072ef 100644
--- a/src/network/socket/qnativesocketengine_p.h
+++ b/src/network/socket/qnativesocketengine_p.h
@@ -286,8 +286,10 @@ public:
     bool checkProxy(const QHostAddress &address);
     bool fetchConnectionParameters();
 
+#if QT_CONFIG(networkinterface)
     static uint scopeIdFromString(const QString &scopeid)
     { return QNetworkInterface::interfaceIndexFromName(scopeid); }
+#endif
 
     /*! \internal
         Sets \a address and \a port in the \a aa sockaddr structure and the size in \a sockAddrSize.
@@ -301,7 +303,9 @@ public:
             || socketProtocol == QAbstractSocket::AnyIPProtocol) {
             memset(&aa->a6, 0, sizeof(sockaddr_in6));
             aa->a6.sin6_family = AF_INET6;
+#if QT_CONFIG(networkinterface)
             aa->a6.sin6_scope_id = scopeIdFromString(address.scopeId());
+#endif
             aa->a6.sin6_port = htons(port);
             Q_IPV6ADDR tmp = address.toIPv6Address();
             memcpy(&aa->a6.sin6_addr, &tmp, sizeof(tmp));
diff --git a/src/network/socket/qnativesocketengine_unix.cpp b/src/network/socket/qnativesocketengine_unix.cpp
index e140b33ce9..09c06adb1e 100644
--- a/src/network/socket/qnativesocketengine_unix.cpp
+++ b/src/network/socket/qnativesocketengine_unix.cpp
@@ -121,8 +121,10 @@ static inline void qt_socket_getPortAndAddress(const qt_sockaddr *s, quint16 *po
             QHostAddress tmpAddress;
             tmpAddress.setAddress(tmp);
             *addr = tmpAddress;
+#if QT_CONFIG(networkinterface)
             if (s->a6.sin6_scope_id)
                 addr->setScopeId(QNetworkInterface::interfaceNameFromIndex(s->a6.sin6_scope_id));
+#endif
         }
         if (port)
             *port = ntohs(s->a6.sin6_port);