diff --git a/src/rom.rs b/src/rom.rs
index 08a621d..0646161 100644
--- a/src/rom.rs
+++ b/src/rom.rs
@@ -14,7 +14,7 @@ use crate::{
 
 #[derive(Deserialize)]
 struct Config {
-    file_name: Option<String>,
+    image: Option<String>,
 }
 
 #[derive(Debug)]
diff --git a/src/storage.rs b/src/storage.rs
index a280447..a710a70 100644
--- a/src/storage.rs
+++ b/src/storage.rs
@@ -16,7 +16,7 @@ const SECTOR_SIZE: usize = 256;
 
 #[derive(Deserialize)]
 struct Config {
-    file_name: Option<String>,
+    image: Option<String>,
 }
 
 #[derive(Debug)]