diff --git a/core/ModuleView.cpp b/core/ModuleView.cpp
--- a/core/ModuleView.cpp
+++ b/core/ModuleView.cpp
@@ -32,6 +32,7 @@
 #include <QPushButton>
 #include <QLoggingCategory>
 #include <QDialogButtonBox>
+#include <QStandardPaths>
 
 #include <KPageWidget>
 #include <KAuthorized>
@@ -399,7 +400,9 @@
     d->mApply->setVisible(buttons & KCModule::Apply);
     d->mReset->setEnabled(change);
     d->mReset->setVisible(buttons & KCModule::Apply);
-    d->mHelp->setEnabled(buttons & KCModule::Help );
+
+    static const bool isKHelpAvailable = !QStandardPaths::findExecutable(QStringLiteral("khelpcenter")).isEmpty();
+    d->mHelp->setEnabled((buttons & KCModule::Help) && isKHelpAvailable);
     d->mHelp->setVisible(buttons & KCModule::Help );
     emit moduleChanged( change );
 }