diff --git a/src/corelib/io/qtemporaryfile.cpp b/src/corelib/io/qtemporaryfile.cpp
index a98256c1f42..ff6a514fc9c 100644
--- a/src/corelib/io/qtemporaryfile.cpp
+++ b/src/corelib/io/qtemporaryfile.cpp
@@ -70,9 +70,8 @@ QTemporaryFileName::QTemporaryFileName(const QString &templateName)
         qfilename.append(".XXXXXX"_L1);
 
     // "Nativify" :-)
-    QFileSystemEntry::NativePath filename = QFileSystemEngine::absoluteName(
-            QFileSystemEntry(qfilename, QFileSystemEntry::FromInternalPath()))
-        .nativeFilePath();
+    QFileSystemEntry::NativePath filename =
+            QFileSystemEntry(QDir::cleanPath(qfilename)).nativeFilePath();
 
     // Find mask in native path
     phPos = filename.size();
diff --git a/tests/auto/corelib/plugin/qpluginloader/tst_qpluginloader.cpp b/tests/auto/corelib/plugin/qpluginloader/tst_qpluginloader.cpp
index bb6ecb45f41..cc8ed2db6ea 100644
--- a/tests/auto/corelib/plugin/qpluginloader/tst_qpluginloader.cpp
+++ b/tests/auto/corelib/plugin/qpluginloader/tst_qpluginloader.cpp
@@ -16,6 +16,8 @@
 #  include <QtCore/private/qmachparser_p.h>
 #endif
 
+using namespace Qt::StringLiterals;
+
 // Helper macros to let us know if some suffixes are valid
 #define bundle_VALID    false
 #define dylib_VALID     false
@@ -128,7 +130,7 @@ static std::unique_ptr<QTemporaryFile> patchElf(const QString &source, ElfPatche
         const char *basename = QTest::currentDataTag();
         if (!basename)
             basename = QTest::currentTestFunction();
-        tmplib.reset(new QTemporaryFile(basename + QString(".XXXXXX" SUFFIX)));
+        tmplib.reset(new QTemporaryFile(QDir::currentPath() + u'/' + basename + u".XXXXXX" SUFFIX ""_s));
         QVERIFY2(tmplib->open(), qPrintable(tmplib->errorString()));
 
         // sanity-check