diff --git a/tests/auto/profilewriter/tst_profilewriter.cpp b/tests/auto/profilewriter/tst_profilewriter.cpp
index 450dbea7415..f60c5aa8101 100644
--- a/tests/auto/profilewriter/tst_profilewriter.cpp
+++ b/tests/auto/profilewriter/tst_profilewriter.cpp
@@ -448,7 +448,7 @@ void tst_ProFileWriter::adds()
 
     QMakeVfs vfs;
     QMakeParser parser(0, &vfs, &parseHandler);
-    ProFile *proFile = parser.parsedProBlock(input, QLatin1String(BASE_DIR "/test.pro"), 1);
+    ProFile *proFile = parser.parsedProBlock(QStringRef(&input), QLatin1String(BASE_DIR "/test.pro"), 1);
     QVERIFY(proFile);
     PW::putVarValues(proFile, &lines, values, var, PW::PutFlags(flags), scope);
     proFile->deref();
@@ -619,7 +619,7 @@ void tst_ProFileWriter::removes()
 
     QMakeVfs vfs;
     QMakeParser parser(0, &vfs, &parseHandler);
-    ProFile *proFile = parser.parsedProBlock(input, QLatin1String(BASE_DIR "/test.pro"), 1);
+    ProFile *proFile = parser.parsedProBlock(QStringRef(&input), QLatin1String(BASE_DIR "/test.pro"), 1);
     QVERIFY(proFile);
     QmakeProjectManager::Internal::ProWriter::removeVarValues(proFile, &lines, values, vars);
     proFile->deref();
@@ -648,7 +648,7 @@ void tst_ProFileWriter::multiVar()
 
     QMakeVfs vfs;
     QMakeParser parser(0, &vfs, &parseHandler);
-    ProFile *proFile = parser.parsedProBlock(input, QLatin1String(BASE_DIR "/test.pro"), 1);
+    ProFile *proFile = parser.parsedProBlock(QStringRef(&input), QLatin1String(BASE_DIR "/test.pro"), 1);
     QVERIFY(proFile);
     QmakeProjectManager::Internal::ProWriter::removeFiles(proFile, &lines, baseDir, files, vars);
     proFile->deref();
@@ -669,7 +669,7 @@ void tst_ProFileWriter::addFiles()
 
     QMakeVfs vfs;
     QMakeParser parser(0, &vfs, &parseHandler);
-    ProFile *proFile = parser.parsedProBlock(input, QLatin1String(BASE_DIR "/test.pro"), 1);
+    ProFile *proFile = parser.parsedProBlock(QStringRef(&input), QLatin1String(BASE_DIR "/test.pro"), 1);
     QVERIFY(proFile);
     QmakeProjectManager::Internal::ProWriter::addFiles(proFile, &lines,
             QStringList() << QString::fromLatin1(BASE_DIR "/sub/bar.cpp"),
@@ -691,7 +691,7 @@ void tst_ProFileWriter::removeFiles()
 
     QMakeVfs vfs;
     QMakeParser parser(0, &vfs, &parseHandler);
-    ProFile *proFile = parser.parsedProBlock(input, QLatin1String(BASE_DIR "/test.pro"), 1);
+    ProFile *proFile = parser.parsedProBlock(QStringRef(&input), QLatin1String(BASE_DIR "/test.pro"), 1);
     QVERIFY(proFile);
     QmakeProjectManager::Internal::ProWriter::removeFiles(proFile, &lines, QDir(BASE_DIR),
             QStringList() << QString::fromLatin1(BASE_DIR "/sub/bar.cpp"),