diff --git a/src/plugins/help/localhelpmanager.cpp b/src/plugins/help/localhelpmanager.cpp
index b2d317e7329..ee6220c280e 100644
--- a/src/plugins/help/localhelpmanager.cpp
+++ b/src/plugins/help/localhelpmanager.cpp
@@ -342,7 +342,6 @@ QVector<HelpViewerFactory> LocalHelpManager::viewerBackends()
 {
     QVector<HelpViewerFactory> result;
 #ifdef QTC_WEBENGINE_HELPVIEWER
-#if QT_VERSION >= QT_VERSION_CHECK(5, 12, 0)
     static bool schemeRegistered = false;
     if (!schemeRegistered) {
         schemeRegistered = true;
@@ -350,7 +349,6 @@ QVector<HelpViewerFactory> LocalHelpManager::viewerBackends()
         scheme.setFlags(QWebEngineUrlScheme::LocalScheme | QWebEngineUrlScheme::LocalAccessAllowed);
         QWebEngineUrlScheme::registerScheme(scheme);
     }
-#endif
     result.append(
         {kQtWebEngineBackend, tr("QtWebEngine"), []() { return new WebEngineHelpViewer; }});
 #endif