diff --git a/Applications/ProcessManager/ProcessTableModel.cpp b/Applications/ProcessManager/ProcessTableModel.cpp
index a2aa5ff29a..f157661625 100644
--- a/Applications/ProcessManager/ProcessTableModel.cpp
+++ b/Applications/ProcessManager/ProcessTableModel.cpp
@@ -75,21 +75,6 @@ GTableModel::ColumnMetadata ProcessTableModel::column_metadata(int column) const
     }
 }
 
-GModelIndex ProcessTableModel::selected_index() const
-{
-    return { m_selected_row, 0 };
-}
-
-void ProcessTableModel::set_selected_index(GModelIndex index)
-{
-    if (!index.is_valid()) {
-        m_selected_row = -1;
-        return;
-    }
-    if (index.row() >= 0 && index.row() < m_pids.size())
-        m_selected_row = index.row();
-}
-
 static String pretty_byte_size(size_t size)
 {
     return String::format("%uK", size / 1024);
@@ -207,7 +192,7 @@ void ProcessTableModel::update()
 
 pid_t ProcessTableModel::selected_pid() const
 {
-    if (m_selected_row == -1)
+    if (!selected_index().is_valid())
         return -1;
-    return m_pids[m_selected_row];
+    return m_pids[selected_index().row()];
 }
diff --git a/Applications/ProcessManager/ProcessTableModel.h b/Applications/ProcessManager/ProcessTableModel.h
index 41185cc67f..47899b712e 100644
--- a/Applications/ProcessManager/ProcessTableModel.h
+++ b/Applications/ProcessManager/ProcessTableModel.h
@@ -15,8 +15,6 @@ public:
     virtual int column_count() const override;
     virtual String column_name(int column) const override;
     virtual ColumnMetadata column_metadata(int column) const override;
-    virtual GModelIndex selected_index() const override;
-    virtual void set_selected_index(GModelIndex) override;
     virtual GVariant data(int row, int column) const override;
     virtual void update() override;
 
@@ -43,7 +41,6 @@ private:
     HashMap<uid_t, String> m_usernames;
     HashMap<pid_t, OwnPtr<Process>> m_processes;
     Vector<pid_t> m_pids;
-    int m_selected_row { -1 };
     RetainPtr<GraphicsBitmap> m_generic_process_icon;
     RetainPtr<GraphicsBitmap> m_high_priority_icon;
     RetainPtr<GraphicsBitmap> m_low_priority_icon;
diff --git a/LibGUI/GTableModel.h b/LibGUI/GTableModel.h
index 3ea5a2f88f..b1c6a5e46f 100644
--- a/LibGUI/GTableModel.h
+++ b/LibGUI/GTableModel.h
@@ -46,8 +46,6 @@ public:
     virtual String column_name(int) const { return { }; }
     virtual ColumnMetadata column_metadata(int) const { return { }; }
     virtual GVariant data(int row, int column) const = 0;
-    virtual void set_selected_index(GModelIndex) { }
-    virtual GModelIndex selected_index() const { return GModelIndex(); }
     virtual void update() = 0;
 
     bool is_valid(GModelIndex index) const
@@ -55,6 +53,9 @@ public:
         return index.row() >= 0 && index.row() < row_count() && index.column() >= 0 && index.column() < column_count();
     }
 
+    void set_selected_index(const GModelIndex& index) { m_selected_index = index; }
+    GModelIndex selected_index() const { return m_selected_index; }
+
     void register_view(Badge<GTableView>, GTableView&);
     void unregister_view(Badge<GTableView>, GTableView&);
 
@@ -66,4 +67,5 @@ protected:
 
 private:
     HashTable<GTableView*> m_views;
+    GModelIndex m_selected_index;
 };