diff --git a/ldm/models/diffusion/dpm_solver/dpm_solver.py b/ldm/models/diffusion/dpm_solver/dpm_solver.py
index f5f59b9..79390c0 100644
--- a/ldm/models/diffusion/dpm_solver/dpm_solver.py
+++ b/ldm/models/diffusion/dpm_solver/dpm_solver.py
@@ -522,15 +522,15 @@ class DPM_Solver:
         if order == 3:
             K = steps // 3 + 1
             if steps % 3 == 0:
-                orders = [3,] * (
+                orders = [3, ] * (
                     K - 2
                 ) + [2, 1]
             elif steps % 3 == 1:
-                orders = [3,] * (
+                orders = [3, ] * (
                     K - 1
                 ) + [1]
             else:
-                orders = [3,] * (
+                orders = [3, ] * (
                     K - 1
                 ) + [2]
         elif order == 2:
@@ -541,7 +541,7 @@ class DPM_Solver:
                 ] * K
             else:
                 K = steps // 2 + 1
-                orders = [2,] * (
+                orders = [2, ] * (
                     K - 1
                 ) + [1]
         elif order == 1: