diff --git a/src/lib.rs b/src/lib.rs
index 7f51c94965f6c860b92c7752ee14429f1c3df823..4dc8c8923e8ec4231220fac9d4867206ef565d6f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -217,7 +217,9 @@ fn parse_properties<R: Read>(parser: &mut EventReader<R>) -> Result<Properties,
 pub struct Map {
     pub version: String,
     pub orientation: Orientation,
+    /// Width of the map, in tiles
     pub width: u32,
+    /// Height of the map, in tiles
     pub height: u32,
     pub tile_width: u32,
     pub tile_height: u32,