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-rw-r--r--mate-volume-control/gvc-mixer-dialog.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/mate-volume-control/gvc-mixer-dialog.c b/mate-volume-control/gvc-mixer-dialog.c
index 6bb8e7a..fd92967 100644
--- a/mate-volume-control/gvc-mixer-dialog.c
+++ b/mate-volume-control/gvc-mixer-dialog.c
@@ -2364,6 +2364,11 @@ gvc_mixer_dialog_class_init (GvcMixerDialogClass *klass)
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
+#if GTK_CHECK_VERSION (3, 19, 0)
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+ gtk_widget_class_set_css_name (widget_class, "GvcMixerDialog");
+#endif
+
g_type_class_add_private (klass, sizeof (GvcMixerDialogPrivate));
}