diff --git a/src/sound/mod.rs b/src/sound/mod.rs
index 5d74e1a..4b9941b 100644
--- a/src/sound/mod.rs
+++ b/src/sound/mod.rs
@@ -34,7 +34,7 @@ where
     'a: 'static,
 {
     fn build(&self, app: &mut App) {
-        let core_config = *app.world.get_resource::<CoreConfig>().unwrap();
+        let _core_config = *app.world.get_resource::<CoreConfig>().unwrap();
         /*if let Some(context) = app.world.get_resource::<Context>() {
             context
                 .set_meters_per_unit(1. / core_config.pixels_per_unit as f32)