diff --git a/Cargo.toml b/Cargo.toml
index 00f24a9..43c3f91 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "mixsy"
 description = "combine Bitsy games"
-version = "0.72.0"
+version = "0.75.0"
 authors = ["Max Bradbury <max@tinybird.info>"]
 edition = "2018"
 license = "MIT"
@@ -13,6 +13,6 @@ repository = "https://tinybird.dev/max/mixsy"
 crate-type = ["cdylib"]
 
 [dependencies]
-"bitsy-parser" = "^0.72.0"
+"bitsy-parser" = "^0.75.0"
 "lazy_static"  = "^1.4.0"
 "wasm-bindgen" = "^0.2.64"
diff --git a/src/lib.rs b/src/lib.rs
index cc19e52..f2fae5e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -16,10 +16,11 @@ lazy_static! {
 
 #[wasm_bindgen]
 pub fn load_main(game_data: String) -> String {
-    let game = Game::from(game_data);
+    let result = Game::from(game_data);
 
-    if game.is_ok() {
-        STATE.lock().unwrap().main = Some(game.unwrap());
+    if result.is_ok() {
+        let (game, _errors) = result.unwrap();
+        STATE.lock().unwrap().main = Some(game);
         "OK!"
     } else {
         "Could not parse game data"
@@ -28,10 +29,11 @@ pub fn load_main(game_data: String) -> String {
 
 #[wasm_bindgen]
 pub fn load_additional(game_data: String) -> String {
-    let game = Game::from(game_data);
+    let result = Game::from(game_data);
 
-    if game.is_ok() {
-        STATE.lock().unwrap().additional = Some(game.unwrap());
+    if result.is_ok() {
+        let (game, _errors) = result.unwrap();
+        STATE.lock().unwrap().additional = Some(game);
         "OK!"
     } else {
         "Could not parse game data"
@@ -47,7 +49,8 @@ pub fn merge() -> String {
     }
 
     let mut main = state.main.clone().unwrap();
-    let additional = state.additional.clone().unwrap();
+    let additional = state.additional.as_ref().unwrap();
+
     main.merge(additional);
     main.dedupe_tiles();
     main.to_string()