diff --git a/src/gtk/popupwin.cpp b/src/gtk/popupwin.cpp
index 340954afb1..604d0565c8 100644
--- a/src/gtk/popupwin.cpp
+++ b/src/gtk/popupwin.cpp
@@ -120,7 +120,7 @@ gtk_dialog_realized_callback( GtkWidget * WXUNUSED(widget), wxPopupWindow *win )
     gdk_window_set_decorations( win->m_widget->window, (GdkWMDecoration)decor);
     gdk_window_set_functions( win->m_widget->window, (GdkWMFunction)func);
 
-    gtk_window_set_policy(GTK_WINDOW(win->m_widget), 0, 0, 1);
+    gtk_window_set_resizable(GTK_WINDOW(win->m_widget), FALSE);
 
     return FALSE;
 }
diff --git a/src/gtk/toplevel.cpp b/src/gtk/toplevel.cpp
index 76cc40e37a..9bbb064569 100644
--- a/src/gtk/toplevel.cpp
+++ b/src/gtk/toplevel.cpp
@@ -333,9 +333,9 @@ gtk_frame_realized_callback( GtkWidget * WXUNUSED(widget),
 
     // GTK's shrinking/growing policy
     if ((win->m_gdkFunc & GDK_FUNC_RESIZE) == 0)
-        gtk_window_set_policy(GTK_WINDOW(win->m_widget), 0, 0, 1);
+        gtk_window_set_resizable(GTK_WINDOW(win->m_widget), FALSE);
     else
-        gtk_window_set_policy(GTK_WINDOW(win->m_widget), 1, 1, 1);
+        gtk_window_set_resizable(GTK_WINDOW(win->m_widget), TRUE);
 
     // reset the icon
     wxIconBundle iconsOld = win->GetIcons();