diff --git a/src/lib.rs b/src/lib.rs
index 9afd193..b27060e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -5,7 +5,7 @@ mod colour;
 mod config;
 mod entity;
 mod image;
-mod mock;
+pub mod mock;
 mod music;
 mod palette;
 mod scene;
@@ -224,10 +224,9 @@ impl Game {
         Ok(Game { config, images, tiles, palettes, music, entities, scenes })
     }
 
-    // todo Result<&Image>?
-    pub fn get_image_by_name(&self, name: String) -> Option<&Image> {
+    pub fn get_image_by_name(&self, name: &String) -> Option<&Image> {
         for image in self.images.iter() {
-            if image.name == name {
+            if &image.name == name {
                 return Some(&image);
             }
         }