diff --git a/vsi2tif/src/process.py b/vsi2tif/src/process.py
index 89a91d1..94d237f 100644
--- a/vsi2tif/src/process.py
+++ b/vsi2tif/src/process.py
@@ -48,6 +48,6 @@ def cellsens2tif_batch(
     # perform conversion in separate processes
     for root, file in tqdm(paths):
         curr_input_path = os.path.join(root, file)
-        curr_output_path = os.path.join(output_path, output_path.split(root)[0], file).replace(".vsi", ".tif")
+        curr_output_path = (output_path + "/" + curr_input_path.split(input_path)[-1]).replace(".vsi", ".tif")
 
         cellsens2tif(curr_input_path, curr_output_path, bfconvert, compression, tz, plane, quality, max_mem, verbose)