diff --git a/src/simulator/ideal_gas.rs b/src/simulator/ideal_gas.rs
index cedb30f..789d3f2 100644
--- a/src/simulator/ideal_gas.rs
+++ b/src/simulator/ideal_gas.rs
@@ -148,7 +148,7 @@ fn update_ideal_gas_volume_from_pressure(
     mut query: Query<(&mut Volume, &Temperature, &Pressure, &SimMass, &GasSpecies), With<IdealGas>>,
 ) {
     for (mut volume, temperature, pressure, mass, species) in query.iter_mut() {
-        *volume = ideal_gas_volume(*temperature, *pressure, *mass, &species);
+        *volume = ideal_gas_volume(*temperature, *pressure, *mass, species);
     }
 }
 
diff --git a/src/simulator/properties.rs b/src/simulator/properties.rs
index 4117843..6615665 100644
--- a/src/simulator/properties.rs
+++ b/src/simulator/properties.rs
@@ -6,7 +6,7 @@ use std::ops::{Add, Div, Mul, Sub};
 
 use avian3d::{
     math::{Scalar, PI},
-    prelude::{ColliderDensity, ColliderMassProperties, PhysicsSet, RigidBody},
+    prelude::{ColliderDensity, ColliderMassProperties, PhysicsSet},
 };
 use bevy::{prelude::*, reflect::Reflect};
 #[cfg(feature = "config-files")]