diff --git a/src/plugins/qnx/qnxconfiguration.cpp b/src/plugins/qnx/qnxconfiguration.cpp
index 9b5ff20881a..3d3a09df7b1 100644
--- a/src/plugins/qnx/qnxconfiguration.cpp
+++ b/src/plugins/qnx/qnxconfiguration.cpp
@@ -354,7 +354,7 @@ void QnxConfiguration::setVersion(const QnxVersionNumber &version)
 
 void QnxConfiguration::readInformation()
 {
-    QString qConfigPath = FileName(m_qnxConfiguration).appendPath("qconfig").toString();
+    const QString qConfigPath = m_qnxConfiguration.pathAppended("qconfig").toString();
     QList <ConfigInstallInformation> installInfoList = QnxUtils::installedConfigs(qConfigPath);
     if (installInfoList.isEmpty())
         return;
@@ -418,13 +418,13 @@ void QnxConfiguration::updateTargets()
 
 void QnxConfiguration::assignDebuggersToTargets()
 {
-    QDir hostUsrBinDir(FileName(m_qnxHost).appendPath("usr/bin").toString());
+    const QDir hostUsrBinDir(m_qnxHost.pathAppended("usr/bin").toString());
     QStringList debuggerNames = hostUsrBinDir.entryList(
                 QStringList(HostOsInfo::withExecutableSuffix(QLatin1String("nto*-gdb"))),
                 QDir::Files);
     foreach (const QString &debuggerName, debuggerNames) {
-        FileName debuggerPath = FileName::fromString(hostUsrBinDir.path())
-                .appendPath(debuggerName);
+        const FileName debuggerPath = FileName::fromString(hostUsrBinDir.path())
+                .pathAppended(debuggerName);
         DebuggerItem item;
         item.setCommand(debuggerPath);
         item.reinitializeFromFile();
diff --git a/src/plugins/qnx/qnxutils.cpp b/src/plugins/qnx/qnxutils.cpp
index 8178c33f095..0bfb4dedd89 100644
--- a/src/plugins/qnx/qnxutils.cpp
+++ b/src/plugins/qnx/qnxutils.cpp
@@ -219,7 +219,7 @@ QList<QnxTarget> QnxUtils::findTargets(const Utils::FileName &basePath)
     QDirIterator iterator(basePath.toString());
     while (iterator.hasNext()) {
         iterator.next();
-        FileName libc = FileName::fromString(iterator.filePath()).appendPath("lib/libc.so");
+        const FileName libc = FileName::fromString(iterator.filePath()).pathAppended("lib/libc.so");
         if (libc.exists()) {
             auto abis = Abi::abisOfBinary(libc);
             if (abis.isEmpty()) {
diff --git a/src/plugins/qtsupport/baseqtversion.cpp b/src/plugins/qtsupport/baseqtversion.cpp
index e2e62634168..7316994a801 100644
--- a/src/plugins/qtsupport/baseqtversion.cpp
+++ b/src/plugins/qtsupport/baseqtversion.cpp
@@ -444,12 +444,10 @@ FileName BaseQtVersion::binPath() const
 
 FileName BaseQtVersion::mkspecsPath() const
 {
-    FileName result = FileName::fromUserInput(qmakeProperty("QT_HOST_DATA"));
+    const FileName result = FileName::fromUserInput(qmakeProperty("QT_HOST_DATA"));
     if (result.isEmpty())
-        result = FileName::fromUserInput(qmakeProperty("QMAKE_MKSPECS"));
-    else
-        result.appendPath("mkspecs");
-    return result;
+        return FileName::fromUserInput(qmakeProperty("QMAKE_MKSPECS"));
+    return result.pathAppended("mkspecs");
 }
 
 FileName BaseQtVersion::qmlBinPath() const
@@ -906,7 +904,7 @@ void BaseQtVersion::updateMkspec() const
         m_mkspec = m_mkspec.relativeChildPath(baseMkspecDir);
 //        qDebug() << "Setting mkspec to"<<mkspec;
     } else {
-        FileName sourceMkSpecPath = sourcePath().appendPath("mkspecs");
+        const FileName sourceMkSpecPath = sourcePath().pathAppended("mkspecs");
         if (m_mkspec.isChildOf(sourceMkSpecPath)) {
             m_mkspec = m_mkspec.relativeChildPath(sourceMkSpecPath);
         } else {
@@ -1819,8 +1817,8 @@ FileNameList BaseQtVersion::qtCorePaths() const
                 && file.startsWith("QtCore")
                 && file.endsWith(".framework")) {
             // handle Framework
-            FileName lib = FileName::fromFileInfo(info);
-            dynamicLibs.append(lib.appendPath(file.left(file.lastIndexOf('.'))));
+            const FileName lib = FileName::fromFileInfo(info);
+            dynamicLibs.append(lib.pathAppended(file.left(file.lastIndexOf('.'))));
         } else if (info.isReadable()) {
             if (file.startsWith("libQtCore")
                     || file.startsWith("libQt5Core")
diff --git a/src/plugins/qtsupport/desktopqtversion.cpp b/src/plugins/qtsupport/desktopqtversion.cpp
index 30292b11ee7..c3d23cb5bfb 100644
--- a/src/plugins/qtsupport/desktopqtversion.cpp
+++ b/src/plugins/qtsupport/desktopqtversion.cpp
@@ -94,8 +94,8 @@ QString DesktopQtVersion::qmlsceneCommand() const
 
     ensureMkSpecParsed();
 
-    QString path =
-        qmlBinPath().appendPath(Utils::HostOsInfo::withExecutableSuffix("qmlscene")).toString();
+    const QString path =
+        qmlBinPath().pathAppended(Utils::HostOsInfo::withExecutableSuffix("qmlscene")).toString();
 
     m_qmlsceneCommand = QFileInfo(path).isFile() ? path : QString();