diff --git a/app/backend/autoupdatechecker.cpp b/app/backend/autoupdatechecker.cpp
index 23a5b597..a0e8ca28 100644
--- a/app/backend/autoupdatechecker.cpp
+++ b/app/backend/autoupdatechecker.cpp
@@ -1,4 +1,5 @@
 #include "autoupdatechecker.h"
+#include "utils.h"
 
 #include <QNetworkReply>
 #include <QJsonDocument>
@@ -61,7 +62,7 @@ void AutoUpdateChecker::handleUpdateCheckRequestFinished(QNetworkReply* reply)
 {
     Q_ASSERT(reply->isFinished());
 
-    if (reply->error() == QNetworkReply::NoError) {
+    if (QNETREPLY_GET_ERROR(reply) == QNetworkReply::NoError) {
         QTextStream stream(reply);
         stream.setCodec("UTF-8");
 
@@ -154,7 +155,7 @@ void AutoUpdateChecker::handleUpdateCheckRequestFinished(QNetworkReply* reply)
                    << QSysInfo::buildCpuArchitecture() << getPlatform();
     }
     else {
-        qWarning() << "Update checking failed with error: " << reply->error();
+        qWarning() << "Update checking failed with error: " << QNETREPLY_GET_ERROR(reply);
         reply->deleteLater();
     }
 }
diff --git a/app/backend/nvcomputer.cpp b/app/backend/nvcomputer.cpp
index c4e92698..983d6a16 100644
--- a/app/backend/nvcomputer.cpp
+++ b/app/backend/nvcomputer.cpp
@@ -1,4 +1,5 @@
 #include "nvcomputer.h"
+#include "utils.h"
 
 #include <QUdpSocket>
 #include <QHostInfo>
@@ -229,7 +230,7 @@ bool NvComputer::wake()
                     success = true;
                 }
                 else {
-                    qWarning() << "Send failed:" << sock.error();
+                    qWarning() << "Send failed:" << QSOCK_GET_ERROR(&sock);
                 }
             }
         }
diff --git a/app/backend/nvhttp.cpp b/app/backend/nvhttp.cpp
index 8b70d07c..fc1a47bd 100644
--- a/app/backend/nvhttp.cpp
+++ b/app/backend/nvhttp.cpp
@@ -1,4 +1,5 @@
 #include "nvhttp.h"
+#include "utils.h"
 #include <Limelight.h>
 
 #include <QDebug>
@@ -488,26 +489,26 @@ NvHTTP::openConnection(QUrl baseUrl,
     m_Nam.clearAccessCache();
 
     // Handle error
-    if (reply->error() != QNetworkReply::NoError)
+    if (QNETREPLY_GET_ERROR(reply) != QNetworkReply::NoError)
     {
         if (logLevel >= NvLogLevel::NVLL_ERROR) {
-            qWarning() << command << " request failed with error " << reply->error();
+            qWarning() << command << " request failed with error " << QNETREPLY_GET_ERROR(reply);
         }
 
-        if (reply->error() == QNetworkReply::SslHandshakeFailedError) {
+        if (QNETREPLY_GET_ERROR(reply) == QNetworkReply::SslHandshakeFailedError) {
             // This will trigger falling back to HTTP for the serverinfo query
             // then pairing again to get the updated certificate.
             GfeHttpResponseException exception(401, "Server certificate mismatch");
             delete reply;
             throw exception;
         }
-        else if (reply->error() == QNetworkReply::OperationCanceledError) {
+        else if (QNETREPLY_GET_ERROR(reply) == QNetworkReply::OperationCanceledError) {
             QtNetworkReplyException exception(QNetworkReply::TimeoutError, "Request timed out");
             delete reply;
             throw exception;
         }
         else {
-            QtNetworkReplyException exception(reply->error(), reply->errorString());
+            QtNetworkReplyException exception(QNETREPLY_GET_ERROR(reply), reply->errorString());
             delete reply;
             throw exception;
         }
diff --git a/app/main.cpp b/app/main.cpp
index 22e0c972..ca76f86d 100644
--- a/app/main.cpp
+++ b/app/main.cpp
@@ -74,7 +74,7 @@ void logToLoggerStream(QString& message)
         return;
     }
     else if (s_LogLinesWritten == MAX_LOG_LINES) {
-        s_LoggerStream << "Log size limit reached!" << endl;
+        s_LoggerStream << "Log size limit reached!" << Qt::endl;
         s_LogLimitReached = true;
         return;
     }
diff --git a/app/utils.h b/app/utils.h
index e2de9d42..0b90e0bb 100644
--- a/app/utils.h
+++ b/app/utils.h
@@ -1,8 +1,18 @@
 #pragma once
 
+#include <QtGlobal>
+
 #define THROW_BAD_ALLOC_IF_NULL(x) \
     if ((x) == nullptr) throw std::bad_alloc()
 
+#if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)
+#define QNETREPLY_GET_ERROR(r) ((r)->networkError())
+#define QSOCK_GET_ERROR(s) ((s)->socketError())
+#else
+#define QNETREPLY_GET_ERROR(r) ((r)->error())
+#define QSOCK_GET_ERROR(s) ((s)->error())
+#endif
+
 namespace WMUtils {
     bool isRunningX11();
     bool isRunningWayland();