diff --git a/src/plugins/perfprofiler/perfdatareader.cpp b/src/plugins/perfprofiler/perfdatareader.cpp
index dfdbbb03421..88904f9a50a 100644
--- a/src/plugins/perfprofiler/perfdatareader.cpp
+++ b/src/plugins/perfprofiler/perfdatareader.cpp
@@ -408,7 +408,7 @@ QString PerfDataReader::findPerfParser()
     QString filePath = QString::fromLocal8Bit(qgetenv("PERFPROFILER_PARSER_FILEPATH"));
     if (filePath.isEmpty()) {
         filePath = QString::fromLatin1("%1/perfparser%2").arg(Core::ICore::libexecPath(),
-                                                              QTC_HOST_EXE_SUFFIX);
+                                                              QString(QTC_HOST_EXE_SUFFIX));
     }
     return QDir::toNativeSeparators(QDir::cleanPath(filePath));
 }
diff --git a/src/plugins/perfprofiler/perftimelinemodel.cpp b/src/plugins/perfprofiler/perftimelinemodel.cpp
index c16ff5d260e..234338ffe38 100644
--- a/src/plugins/perfprofiler/perftimelinemodel.cpp
+++ b/src/plugins/perfprofiler/perftimelinemodel.cpp
@@ -518,7 +518,7 @@ void PerfTimelineModel::finalize()
 
     m_locationOrder.resize(m_locationStats.size());
 
-    QMultiHash<int, LocationStats>::ConstIterator iter = m_locationStats.constBegin();
+    QHash<int, LocationStats>::ConstIterator iter = m_locationStats.constBegin();
     int i = 0;
     for (; iter != m_locationStats.constEnd(); ++iter)
         m_locationOrder[i++] = iter.key();
diff --git a/src/plugins/perfprofiler/tests/perfresourcecounter_test.cpp b/src/plugins/perfprofiler/tests/perfresourcecounter_test.cpp
index f242725c357..f48d6aec45c 100644
--- a/src/plugins/perfprofiler/tests/perfresourcecounter_test.cpp
+++ b/src/plugins/perfprofiler/tests/perfresourcecounter_test.cpp
@@ -62,14 +62,14 @@ template<typename Counter>
 static void fill(Counter &counter, const typename Counter::Container &container, bool fragmented)
 {
     qint64 allocated = 0;
-    QHash<void *, int> allocations;
+    QMultiHash<void *, int> allocations;
     for (int i = 0; i < 100; ++i) {
         for (int j = 0; j < 100; ++j) {
             int amount = fragmented ? j : i;
             allocated += amount;
             counter.request(amount);
             void *alloc = malloc(amount);
-            allocations.insertMulti(alloc, amount);
+            allocations.insert(alloc, amount);
             counter.obtain(reinterpret_cast<quintptr>(alloc));
             QCOMPARE(counter.currentTotal(), allocated);
         }