diff --git a/gtk/gtkfilechooserdefault.c b/gtk/gtkfilechooserdefault.c
index e2f86dafc1..89a5075e57 100644
--- a/gtk/gtkfilechooserdefault.c
+++ b/gtk/gtkfilechooserdefault.c
@@ -7780,28 +7780,21 @@ find_good_size_from_style (GtkWidget *widget,
   g_assert (widget->style != NULL);
   impl = GTK_FILE_CHOOSER_DEFAULT (widget);
 
-  if (impl->default_width == 0 &&
-      impl->default_height == 0)
+  screen = gtk_widget_get_screen (widget);
+  if (screen)
     {
-      screen = gtk_widget_get_screen (widget);
-      if (screen)
-	{
-	  resolution = gdk_screen_get_resolution (screen);
-	  if (resolution < 0.0) /* will be -1 if the resolution is not defined in the GdkScreen */
-	    resolution = 96.0;
-	}
-      else
-	resolution = 96.0; /* wheeee */
-
-      font_size = pango_font_description_get_size (widget->style->font_desc);
-      font_size = PANGO_PIXELS (font_size) * resolution / 72.0;
-
-      impl->default_width = font_size * NUM_CHARS;
-      impl->default_height = font_size * NUM_LINES;
+      resolution = gdk_screen_get_resolution (screen);
+      if (resolution < 0.0) /* will be -1 if the resolution is not defined in the GdkScreen */
+	resolution = 96.0;
     }
+  else
+    resolution = 96.0; /* wheeee */
 
-  *width = impl->default_width;
-  *height = impl->default_height;
+  font_size = pango_font_description_get_size (widget->style->font_desc);
+  font_size = PANGO_PIXELS (font_size) * resolution / 72.0;
+
+  *width = font_size * NUM_CHARS;
+  *height = font_size * NUM_LINES;
 }
 
 static void