diff --git a/samples/opencv_cuda_bg_remover_mog2/bgremover.py b/samples/opencv_cuda_bg_remover_mog2/bgremover.py
index 711ca175..c5992b78 100644
--- a/samples/opencv_cuda_bg_remover_mog2/bgremover.py
+++ b/samples/opencv_cuda_bg_remover_mog2/bgremover.py
@@ -99,7 +99,9 @@ def process_frame(self, buffer: Gst.Buffer, frame_meta: NvDsFrameMeta):
                     frame_mat_copy = frame_mat.clone()
 
                     back_sub = self.back_subtractors[frame_meta.source_id]
-                    self.gaussian_filter.apply(frame_mat_copy, frame_mat_copy, stream=stream)
+                    self.gaussian_filter.apply(
+                        frame_mat_copy, frame_mat_copy, stream=stream
+                    )
                     cu_mat_fg = back_sub.apply(frame_mat_copy, -1, stream)
                     res_image = frame_mat_copy.copyTo(cu_mat_fg, stream)
 
diff --git a/samples/super_resolution/overlay.py b/samples/super_resolution/overlay.py
index 38d3495f..e108ff08 100644
--- a/samples/super_resolution/overlay.py
+++ b/samples/super_resolution/overlay.py
@@ -99,9 +99,17 @@ def process_frame(self, buffer: Gst.Buffer, frame_meta: NvDsFrameMeta):
                     )
 
                     # Place original frame and super resolution frame side by side
-                    opencv_utils.alpha_comp(aux_mat, scaled_image, (0, 0), cuda_stream)
                     opencv_utils.alpha_comp(
-                        aux_mat, sr_image_np, (sr_image_np.shape[1], 0), cuda_stream
+                        aux_mat,
+                        scaled_image,
+                        (0, 0),
+                        stream=cuda_stream,
+                    )
+                    opencv_utils.alpha_comp(
+                        aux_mat,
+                        sr_image_np,
+                        (sr_image_np.shape[1], 0),
+                        stream=cuda_stream,
                     )
             else:
                 self.logger.warning('Super resolution attribute not found.')