1 files changed, 1 insertions, 1 deletions
diff --git a/ui/gtk.c b/ui/gtk.c
index 59bda83..982037b 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -1879,7 +1879,7 @@ static void gd_vc_open(Chardev *chr,
     *be_opened = false;
 }
 
-static void char_gd_vc_class_init(ObjectClass *oc, void *data)
+static void char_gd_vc_class_init(ObjectClass *oc, const void *data)
 {
     ChardevClass *cc = CHARDEV_CLASS(oc);