diff --git a/presample_noise.py b/presample_noise.py
index 425fb63..cceebab 100644
--- a/presample_noise.py
+++ b/presample_noise.py
@@ -62,8 +62,10 @@ def parse_args():
 
     torch.set_default_dtype(torch.float64)
 
-    alpha = torch.ones(args.num_cat - 1)
-    beta =  torch.arange(args.num_cat - 1, 0, -1)
+    device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
+
+    alpha = torch.ones(args.num_cat - 1).to(device)
+    beta =  torch.arange(args.num_cat - 1, 0, -1).to(device)
 
     v_one, v_zero, v_one_loggrad, v_zero_loggrad, timepoints = noise_factory(args.num_samples,
                                                                              args.num_time_steps,
@@ -74,7 +76,8 @@ def parse_args():
                                                                              time_steps=args.steps_per_tick,
                                                                              logspace=args.logspace,
                                                                              speed_balanced=args.speed_balance,
-                                                                             mode=args.mode)
+                                                                             mode=args.mode,
+                                                                             device=device)
 
     v_one = v_one.cpu()
     v_zero = v_zero.cpu()