diff --git a/gtk/gtkdragsource.c b/gtk/gtkdragsource.c
index b3df700065..e654729405 100644
--- a/gtk/gtkdragsource.c
+++ b/gtk/gtkdragsource.c
@@ -103,7 +103,7 @@
  * ```c
  * static void
  * on_drag_begin (GtkDragSource *source,
- *                GtkDrag       *drag,
+ *                GdkDrag       *drag,
  *                MyWidget      *self)
  * {
  *   // Set the widget as the drag icon