diff --git a/launcher/ui/pages/instance/McClient.cpp b/launcher/ui/pages/instance/McClient.cpp
index 47f7a2b67..978eb9295 100644
--- a/launcher/ui/pages/instance/McClient.cpp
+++ b/launcher/ui/pages/instance/McClient.cpp
@@ -13,19 +13,19 @@
 // last bit
 #define CONTINUE_BIT 0x80
 
-McClient::McClient(QObject *parent, QString domain, QString ip, short port): QObject(parent), domain(domain), ip(ip), port(port) {}
+McClient::McClient(QObject *parent, QString domain, QString ip, short port): QObject(parent), m_domain(domain), m_ip(ip), m_port(port) {}
 
 QJsonObject McClient::getStatusDataBlocking() {
     qDebug() << "Connecting to socket..";
-    socket.connectToHost(ip, port);
+    m_socket.connectToHost(m_ip, m_port);
 
-    if (!socket.waitForConnected()) {
+    if (!m_socket.waitForConnected()) {
         throw Exception("Failed to connect to socket");
     }
     qDebug() << "Connected to socket successfully";
     sendRequest();
 
-    if (!socket.waitForReadyRead()) {
+    if (!m_socket.waitForReadyRead()) {
         throw Exception("Socket didn't send anything to read");
     }
     return readResponse();
@@ -48,9 +48,9 @@ void McClient::sendRequest() {
     QByteArray data;
     writeVarInt(data, 0x00); // packet ID
     writeVarInt(data, 0x760); // protocol version
-    writeVarInt(data, domain.size()); // server address length
-    writeString(data, domain.toStdString()); // server address
-    writeFixedInt(data, port, 2); // server port
+    writeVarInt(data, m_domain.size()); // server address length
+    writeString(data, m_domain.toStdString()); // server address
+    writeFixedInt(data, m_port, 2); // server port
     writeVarInt(data, 0x01); // next state
     writePacketToSocket(data); // send handshake packet
 
@@ -61,18 +61,18 @@ void McClient::sendRequest() {
 void McClient::readBytesExactFromSocket(QByteArray &resp, int bytesToRead) {
     while (bytesToRead > 0) {
         qDebug() << bytesToRead << " bytes left to read";
-        if (!socket.waitForReadyRead()) {
+        if (!m_socket.waitForReadyRead()) {
             throw Exception("Read timeout or error");
         }
 
-        QByteArray chunk = socket.read(bytesToRead);
+        QByteArray chunk = m_socket.read(bytesToRead);
         resp.append(chunk);
         bytesToRead -= chunk.size();
     }
 }
 
 QJsonObject McClient::readResponse() {
-    auto resp = socket.readAll();
+    auto resp = m_socket.readAll();
     int length = readVarInt(resp);
 
     // finish ready response
@@ -159,8 +159,8 @@ void McClient::writePacketToSocket(QByteArray &data) {
     dataWithSize.append(data);
 
     // write it to the socket
-    socket.write(dataWithSize);
-    socket.flush();
+    m_socket.write(dataWithSize);
+    m_socket.flush();
 
     data.clear();
 }
diff --git a/launcher/ui/pages/instance/McClient.h b/launcher/ui/pages/instance/McClient.h
index 374adbddf..4df879609 100644
--- a/launcher/ui/pages/instance/McClient.h
+++ b/launcher/ui/pages/instance/McClient.h
@@ -13,10 +13,10 @@
 class McClient : public QObject {
     Q_OBJECT
 
-    QString domain;
-    QString ip;
-    short port;
-    QTcpSocket socket;
+    QString m_domain;
+    QString m_ip;
+    short m_port;
+    QTcpSocket m_socket;
 
 public:
     explicit McClient(QObject *parent, QString domain, QString ip, short port);
diff --git a/launcher/ui/pages/instance/McResolver.cpp b/launcher/ui/pages/instance/McResolver.cpp
index 42bc3ad2c..80f93d9f8 100644
--- a/launcher/ui/pages/instance/McResolver.cpp
+++ b/launcher/ui/pages/instance/McResolver.cpp
@@ -5,10 +5,10 @@
 
 #include "McResolver.h"
 
-McResolver::McResolver(QObject *parent, QString domain, int port): QObject(parent), constrDomain(domain), constrPort(port) {}
+McResolver::McResolver(QObject *parent, QString domain, int port): QObject(parent), m_constrDomain(domain), m_constrPort(port) {}
 
 void McResolver::ping() {
-    pingWithDomainSRV(constrDomain, constrPort);
+    pingWithDomainSRV(m_constrDomain, m_constrPort);
 }
 
 void McResolver::pingWithDomainSRV(QString domain, int port) {
diff --git a/launcher/ui/pages/instance/McResolver.h b/launcher/ui/pages/instance/McResolver.h
index 06947a03c..e2840fd8a 100644
--- a/launcher/ui/pages/instance/McResolver.h
+++ b/launcher/ui/pages/instance/McResolver.h
@@ -8,8 +8,8 @@
 class McResolver : public QObject {
     Q_OBJECT
 
-    QString constrDomain;
-    int constrPort;
+    QString m_constrDomain;
+    int m_constrPort;
 
 public:
     explicit McResolver(QObject *parent, QString domain, int port);