diff --git a/docs/reference/gdk/gdk3-sections.txt b/docs/reference/gdk/gdk3-sections.txt
index 26d8062d20..7b1b9f7419 100644
--- a/docs/reference/gdk/gdk3-sections.txt
+++ b/docs/reference/gdk/gdk3-sections.txt
@@ -638,6 +638,9 @@ gdk_rectangle_intersect
 gdk_rectangle_union
 gdk_rectangle_equal
 
+<SUBSECTION>
+GdkBorder
+
 <SUBSECTION Private>
 gdk_rectangle_get_type
 </SECTION>
diff --git a/gdk/gdktypes.h b/gdk/gdktypes.h
index 01366fd6b7..17584b2989 100644
--- a/gdk/gdktypes.h
+++ b/gdk/gdktypes.h
@@ -93,6 +93,26 @@ typedef struct _GdkRectangle          GdkRectangle;
 typedef cairo_rectangle_int_t         GdkRectangle;
 #endif
 
+typedef struct _GdkBorder GdkBorder;
+
+/**
+ * GdkBorder:
+ * @left: The width of the left border
+ * @right: The width of the right border
+ * @top: The width of the top border
+ * @bottom: The width of the bottom border
+ *
+ * A struct that specifies a border around a rectangular area
+ * that can be of different width on each side.
+ */
+struct _GdkBorder
+{
+  gint16 left;
+  gint16 right;
+  gint16 top;
+  gint16 bottom;
+};
+
 /**
  * GdkAtom:
  *
diff --git a/gtk/gtkborder.h b/gtk/gtkborder.h
index adfa29e764..6df53aac3e 100644
--- a/gtk/gtkborder.h
+++ b/gtk/gtkborder.h
@@ -34,8 +34,6 @@
 
 G_BEGIN_DECLS
 
-typedef struct _GtkBorder GtkBorder;
-
 #define GTK_TYPE_BORDER (gtk_border_get_type ())
 
 /**
@@ -48,13 +46,7 @@ typedef struct _GtkBorder GtkBorder;
  * A struct that specifies a border around a rectangular area
  * that can be of different width on each side.
  */
-struct _GtkBorder
-{
-  gint16 left;
-  gint16 right;
-  gint16 top;
-  gint16 bottom;
-};
+typedef GdkBorder GtkBorder;
 
 GDK_AVAILABLE_IN_ALL
 GType      gtk_border_get_type (void) G_GNUC_CONST;