diff --git a/src/main.rs b/src/main.rs
index 5791fdb..55f762f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -29,8 +29,8 @@ struct Cli {
 fn main() {
     let cli = Cli::parse();
 
-    let mut sys = DLASystem::<SmallRng, VectorStorage, LocalRandomWalker>::new(
-        SmallRng::seed_from_u64(cli.seed),
+    let mut sys = DLASystem::<ThreadRng, VectorStorage, LocalRandomWalker>::new(
+        ThreadRng::default(),
         cli.max_particles,
         cli.stick_probability
     );
diff --git a/src/system/model.rs b/src/system/model.rs
index 7bad802..737b215 100644
--- a/src/system/model.rs
+++ b/src/system/model.rs
@@ -29,7 +29,7 @@ pub struct DLASystem<R: Rng, S: Storage, W: Walker<R>> {
 
 impl<R: Rng, S: Storage, W: Walker<R>> DLASystem<R, S, W> {
     pub fn new(rng: R, max_particles: usize, stick_probability: f32) -> DLASystem<R, VectorStorage, LocalRandomWalker> {
-        let mut sys: DLASystem<SmallRng, VectorStorage, LocalRandomWalker> = DLASystem {
+        let mut sys: DLASystem<R, VectorStorage, LocalRandomWalker> = DLASystem {
             rng,
             stick_probability,
             max_particles,