diff --git a/Libraries/LibGUI/SortingProxyModel.cpp b/Libraries/LibGUI/SortingProxyModel.cpp
index 07ca22806a8..596938a2d88 100644
--- a/Libraries/LibGUI/SortingProxyModel.cpp
+++ b/Libraries/LibGUI/SortingProxyModel.cpp
@@ -285,4 +285,14 @@ bool SortingProxyModel::is_column_sortable(int column_index) const
     return source().is_column_sortable(column_index);
 }
 
+bool SortingProxyModel::is_editable(const ModelIndex& proxy_index) const
+{
+    return source().is_editable(map_to_source(proxy_index));
+}
+
+void SortingProxyModel::set_data(const ModelIndex& proxy_index, const Variant& data)
+{
+    source().set_data(map_to_source(proxy_index), data);
+}
+
 }
diff --git a/Libraries/LibGUI/SortingProxyModel.h b/Libraries/LibGUI/SortingProxyModel.h
index 439b2b43e98..3b192df6e64 100644
--- a/Libraries/LibGUI/SortingProxyModel.h
+++ b/Libraries/LibGUI/SortingProxyModel.h
@@ -45,6 +45,8 @@ public:
     virtual StringView drag_data_type() const override;
     virtual ModelIndex parent_index(const ModelIndex&) const override;
     virtual ModelIndex index(int row, int column, const ModelIndex& parent) const override;
+    virtual bool is_editable(const ModelIndex&) const override;
+    virtual void set_data(const ModelIndex&, const Variant&) override;
 
     virtual bool is_column_sortable(int column_index) const override;