diff --git a/src/control/controlmodel.cpp b/src/control/controlmodel.cpp
index 23f29e1c541..3018c00b8bf 100644
--- a/src/control/controlmodel.cpp
+++ b/src/control/controlmodel.cpp
@@ -16,11 +16,21 @@ ControlModel::ControlModel(QObject* pParent)
     const QList<QSharedPointer<ControlDoublePrivate>> controlsList =
             ControlDoublePrivate::getAllInstances();
 
+    QSet<ConfigKey> controlKeys;
+
     for (const QSharedPointer<ControlDoublePrivate>& pControl : controlsList) {
         if (!pControl) {
             continue;
         }
 
+        // Skip duplicates
+        // This skips either the alias or original key, whatever comes first
+        // in controlsList, but that doesn't make a difference here.
+        if (controlKeys.contains(pControl->getKey())) {
+            continue;
+        }
+        controlKeys.insert(pControl->getKey());
+
         addControl(pControl->getKey(),
                 pControl->name(),
                 pControl->description());