diff --git a/src/libs/qmljs/qmljsdocument.cpp b/src/libs/qmljs/qmljsdocument.cpp
index 1e92b35e087..f3e0eb5fe53 100644
--- a/src/libs/qmljs/qmljsdocument.cpp
+++ b/src/libs/qmljs/qmljsdocument.cpp
@@ -568,10 +568,10 @@ void Snapshot::insertLibraryInfo(const QString &path, const LibraryInfo &info)
                 --iPath;
                 if (safeName.indexIn(myPath.at(iPath)) != 0)
                     break;
-                ImportKey iKey(ImportType::Library, QStringList(myPath.mid(iPath)).join(QLatin1Char('.')),
+                ImportKey iKey(ImportType::Library, QStringList(myPath.mid(iPath)).join(QLatin1String(".")),
                                importKey.majorVersion, importKey.minorVersion);
                 cImport.possibleExports.append(Export(iKey, QStringList(myPath.mid(0, iPath))
-                                                      .join(QLatin1Char('/')), true));
+                                                      .join(QLatin1String("/")), true));
             }
         } else {
             QString requiredPath = QStringList(splitPath.mid(0, splitPath.size() - importKey.splitPath.size()))
@@ -599,10 +599,10 @@ void Snapshot::insertLibraryInfo(const QString &path, const LibraryInfo &info)
             --iPath;
             if (safeName.indexIn(splitPath.at(iPath)) != 0)
                 break;
-            ImportKey iKey(ImportType::Library, QStringList(splitPath.mid(iPath)).join(QLatin1Char('.')),
+            ImportKey iKey(ImportType::Library, QStringList(splitPath.mid(iPath)).join(QLatin1String(".")),
                            majorVersion, minorVersion);
             cImport.possibleExports.append(Export(iKey, QStringList(splitPath.mid(0, iPath))
-                                                  .join(QLatin1Char('/')), true));
+                                                  .join(QLatin1String("/")), true));
         }
     }
     foreach (const QmlDirParser::Component &component, info.components()) {
diff --git a/src/plugins/valgrind/valgrindengine.cpp b/src/plugins/valgrind/valgrindengine.cpp
index f323b46ce2e..99bb3ab4c94 100644
--- a/src/plugins/valgrind/valgrindengine.cpp
+++ b/src/plugins/valgrind/valgrindengine.cpp
@@ -84,7 +84,7 @@ bool ValgrindRunControl::startEngine()
 
     const AnalyzerStartParameters &sp = startParameters();
 #if VALGRIND_DEBUG_OUTPUT
-    emit outputReceived(tr("Valgrind options: %1").arg(toolArguments().join(QLatin1Char(' '))), DebugFormat);
+    emit outputReceived(tr("Valgrind options: %1").arg(toolArguments().join(QLatin1String(" "))), DebugFormat);
     emit outputReceived(tr("Working directory: %1").arg(sp.workingDirectory), DebugFormat);
     emit outputReceived(tr("Command line arguments: %1").arg(sp.debuggeeArgs), DebugFormat);
 #endif
diff --git a/tests/auto/debugger/tst_dumpers.cpp b/tests/auto/debugger/tst_dumpers.cpp
index 15e75b36f91..e3b79fd1c60 100644
--- a/tests/auto/debugger/tst_dumpers.cpp
+++ b/tests/auto/debugger/tst_dumpers.cpp
@@ -1198,7 +1198,7 @@ void tst_Dumpers::dumper()
              << QString::fromUtf8(m_debuggerBinary)
              << t->buildPath + QLatin1String("/doit")
              << QString::fromUtf8(expanded);
-        //qDebug() << exe.constData() << ' ' << qPrintable(args.join(QLatin1Char(' ')));
+        //qDebug() << exe.constData() << ' ' << qPrintable(args.join(QLatin1String(" ")));
     }
 
     t->input = cmds;