diff --git a/src/device/cart/rom.rs b/src/device/cart/rom.rs
index 73476d8..369648e 100644
--- a/src/device/cart/rom.rs
+++ b/src/device/cart/rom.rs
@@ -137,7 +137,7 @@ pub fn init(device: &mut device::Device, rom_file: &[u8]) {
     device.cart.sc64.cfg[device::cart::sc64::SC64_BOOTLOADER_SWITCH as usize] = 1;
 
     device.cart.rom = rom_file.to_vec();
-    device.cart.pal = is_system_pal(device.cart.rom[0x3E]);
+    device.cart.pal = is_system_pal(&device.cart.rom);
     set_cic(device);
 
     device.ui.game_hash = calculate_hash(&device.cart.rom);
@@ -148,10 +148,10 @@ pub fn init(device: &mut device::Device, rom_file: &[u8]) {
     }
 }
 
-pub fn is_system_pal(country: u8) -> bool {
+pub fn is_system_pal(rom_contents: &[u8]) -> bool {
     let pal_codes: [u8; 8] = *b"DFIPSUXY";
     for i in pal_codes {
-        if country == i {
+        if rom_contents[0x3E] == i {
             return true;
         }
     }
diff --git a/src/lib.rs b/src/lib.rs
index 1accd64..0ca1027 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -179,7 +179,7 @@ pub async fn run(args: Args, arg_count: usize) -> std::io::Result<()> {
                 player_number,
                 number_of_players,
                 input_delay,
-                device::cart::rom::is_system_pal(rom_contents[0x3E]),
+                device::cart::rom::is_system_pal(&rom_contents),
             );
             if device.netplay.is_none() {
                 return Err(Error::other("Failed to connect to netplay server"));
diff --git a/src/ui/netplay.rs b/src/ui/netplay.rs
index abe1fcf..7ee3571 100644
--- a/src/ui/netplay.rs
+++ b/src/ui/netplay.rs
@@ -67,7 +67,7 @@ fn select_rom(weak: slint::Weak<AppWindow>, rom_dir: slint::SharedString) {
             if let Some(rom_contents) = device::get_rom_contents(&file) {
                 let hash = device::cart::rom::calculate_hash(&rom_contents);
                 let mut game_name = ui::storage::get_game_name(&rom_contents);
-                let pal = device::cart::rom::is_system_pal(rom_contents[0x3E]);
+                let pal = device::cart::rom::is_system_pal(&rom_contents);
                 let game_crc = ui::storage::get_game_crc(&rom_contents);
                 let cheats = ui::config::Cheats::new();
                 let mut parsed_cheats = String::new();