diff --git a/src/game.rs b/src/game.rs
index 519668b..3edeed8 100644
--- a/src/game.rs
+++ b/src/game.rs
@@ -3,6 +3,7 @@ use loe::TransformMode;
 use std::str::FromStr;
 use std::collections::HashMap;
 use std::borrow::BorrowMut;
+use crate::image::Image;
 
 /// in very early versions of Bitsy, room tiles were defined as single alphanumeric characters -
 /// so there was a maximum of 36 unique tiles. later versions are comma-separated.