1 files changed, 9 insertions, 2 deletions
diff --git a/src/extension/param/notebook.cpp b/src/extension/param/notebook.cpp
index ee7f15004..b4d4cbd16 100644
--- a/src/extension/param/notebook.cpp
+++ b/src/extension/param/notebook.cpp
@@ -352,7 +352,11 @@ public:
         // hook function
         this->signal_switch_page().connect(sigc::mem_fun(this, &ParamNotebookWdg::changed_page));
     };
+#if WITH_GTKMM_3_0
+    void changed_page(Gtk::Widget *page, guint pagenum);
+#else
     void changed_page(GtkNotebookPage *page, guint pagenum);
+#endif
     bool activated;
 };
 
@@ -363,8 +367,11 @@ public:
  * is actually visible. This to exclude 'fake' changes when the
  * notebookpages are added or removed.
  */
-void ParamNotebookWdg::changed_page(GtkNotebookPage */*page*/,
-                                    guint pagenum)
+#if WITH_GTKMM_3_0
+void ParamNotebookWdg::changed_page(Gtk::Widget * /*page*/, guint pagenum)
+#else
+void ParamNotebookWdg::changed_page(GtkNotebookPage * /*page*/, guint pagenum)
+#endif
 {
     if (get_visible()) {
         _pref->set((int)pagenum, _doc, _node);