diff --git a/src/DockWidgetBase.h b/src/DockWidgetBase.h
index 11c2e2e3..123fa924 100644
--- a/src/DockWidgetBase.h
+++ b/src/DockWidgetBase.h
@@ -309,7 +309,7 @@ Q_SIGNALS:
 
     ///@brief emitted when the options change
     ///@sa setOptions(), options()
-    void optionsChanged(Options);
+    void optionsChanged(KDDockWidgets::DockWidgetBase::Options);
 
 protected:
     void onParentChanged();
diff --git a/src/private/multisplitter/Item_p.h b/src/private/multisplitter/Item_p.h
index 13c9b684..bfd18d0e 100644
--- a/src/private/multisplitter/Item_p.h
+++ b/src/private/multisplitter/Item_p.h
@@ -374,8 +374,8 @@ Q_SIGNALS:
     void yChanged();
     void widthChanged();
     void heightChanged();
-    void visibleChanged(Item *thisItem, bool visible);
-    void minSizeChanged(Item *thisItem);
+    void visibleChanged(Layouting::Item *thisItem, bool visible);
+    void minSizeChanged(Layouting::Item *thisItem);
 protected:
     friend class ::TestMultiSplitter;
     explicit Item(bool isContainer, QWidget *hostWidget, ItemContainer *parent);