diff --git a/src/cairoint.h b/src/cairoint.h
index 071ac1546..9d02d350e 100644
--- a/src/cairoint.h
+++ b/src/cairoint.h
@@ -2694,6 +2694,24 @@ slim_hidden_proto (cairo_user_font_face_set_unicode_to_glyph_func);
 slim_hidden_proto (cairo_user_to_device);
 slim_hidden_proto (cairo_user_to_device_distance);
 slim_hidden_proto (cairo_version_string);
+slim_hidden_proto (cairo_region_create);
+slim_hidden_proto (cairo_region_create_rect);
+slim_hidden_proto (cairo_region_create_rectangles);
+slim_hidden_proto (cairo_region_copy);
+slim_hidden_proto (cairo_region_destroy);
+slim_hidden_proto (cairo_region_status);
+slim_hidden_proto (cairo_region_get_extents);
+slim_hidden_proto (cairo_region_num_rectangles);
+slim_hidden_proto (cairo_region_get_rectangle);
+slim_hidden_proto (cairo_region_empty);
+slim_hidden_proto (cairo_region_contains_rectangle);
+slim_hidden_proto (cairo_region_contains_point);
+slim_hidden_proto (cairo_region_clear);
+slim_hidden_proto (cairo_region_translate);
+slim_hidden_proto (cairo_region_subtract);
+slim_hidden_proto (cairo_region_intersect);
+slim_hidden_proto (cairo_region_union);
+slim_hidden_proto (cairo_region_union_rect);
 
 #if CAIRO_HAS_PNG_FUNCTIONS