diff --git a/gmflib/src/types.rs b/gmflib/src/types.rs
index 8123c80..8f54152 100644
--- a/gmflib/src/types.rs
+++ b/gmflib/src/types.rs
@@ -136,6 +136,8 @@ impl gma::Serializable for MapKind {
 pub enum MapType {
     Explicit = 0,
     Spherical = 1,
+    Cylindrical = 2,
+    Shrinkwrap = 3,
     Screen = 4,
 }