diff --git a/src/plugins/coreplugin/editormanager/ieditorfactory.h b/src/plugins/coreplugin/editormanager/ieditorfactory.h
index fd0e43bd42c..20a0baa0e61 100644
--- a/src/plugins/coreplugin/editormanager/ieditorfactory.h
+++ b/src/plugins/coreplugin/editormanager/ieditorfactory.h
@@ -64,7 +64,6 @@ protected:
     void setId(Id id) { m_id = id; }
     void setDisplayName(const QString &displayName) { m_displayName = displayName; }
     void setMimeTypes(const QStringList &mimeTypes) { m_mimeTypes = mimeTypes; }
-    void addMimeType(const char *mimeType) { m_mimeTypes.append(QLatin1String(mimeType)); }
     void addMimeType(const QString &mimeType) { m_mimeTypes.append(mimeType); }
     void setEditorCreator(const std::function<IEditor *()> &creator);
 
diff --git a/src/plugins/imageviewer/imageviewerfactory.cpp b/src/plugins/imageviewer/imageviewerfactory.cpp
index 4dc37a4dcda..d0da540cfab 100644
--- a/src/plugins/imageviewer/imageviewerfactory.cpp
+++ b/src/plugins/imageviewer/imageviewerfactory.cpp
@@ -42,7 +42,7 @@ ImageViewerFactory::ImageViewerFactory()
 
     const QList<QByteArray> supportedMimeTypes = QImageReader::supportedMimeTypes();
     for (const QByteArray &format : supportedMimeTypes)
-        addMimeType(format.constData());
+        addMimeType(QString::fromLatin1(format));
 }
 
 } // namespace Internal
diff --git a/src/plugins/vcsbase/basevcseditorfactory.cpp b/src/plugins/vcsbase/basevcseditorfactory.cpp
index 5ba38b58eb6..7f28f031be1 100644
--- a/src/plugins/vcsbase/basevcseditorfactory.cpp
+++ b/src/plugins/vcsbase/basevcseditorfactory.cpp
@@ -59,7 +59,7 @@ VcsEditorFactory::VcsEditorFactory(const VcsBaseEditorParameters *parameters,
     setId(parameters->id);
     setDisplayName(QCoreApplication::translate("VCS", parameters->displayName));
     if (QLatin1String(parameters->mimeType) != QLatin1String(DiffEditor::Constants::DIFF_EDITOR_MIMETYPE))
-        addMimeType(parameters->mimeType);
+        addMimeType(QLatin1String(parameters->mimeType));
 
     setEditorActionHandlers(TextEditorActionHandler::None);
     setDuplicatedSupported(false);
diff --git a/src/plugins/vcsbase/basevcssubmiteditorfactory.cpp b/src/plugins/vcsbase/basevcssubmiteditorfactory.cpp
index e99637f32bc..b6d862a6e1e 100644
--- a/src/plugins/vcsbase/basevcssubmiteditorfactory.cpp
+++ b/src/plugins/vcsbase/basevcssubmiteditorfactory.cpp
@@ -48,7 +48,7 @@ VcsSubmitEditorFactory::VcsSubmitEditorFactory
 {
     setId(parameters.id);
     setDisplayName(QLatin1String(parameters.displayName));
-    addMimeType(parameters.mimeType);
+    addMimeType(QLatin1String(parameters.mimeType));
 
     setEditorCreator([this, editorCreator, parameters] {
         VcsBaseSubmitEditor *editor = editorCreator();