diff --git a/src/tiledb/cloud/bioimg/helpers.py b/src/tiledb/cloud/bioimg/helpers.py
index 1300b91d7..031496bfb 100644
--- a/src/tiledb/cloud/bioimg/helpers.py
+++ b/src/tiledb/cloud/bioimg/helpers.py
@@ -30,6 +30,9 @@ def get_logger_wrapper(
     return logger
 
 
+_SUPPORTED_EXTENSIONS = (".tiff", ".tif", ".svs", ".tdb")
+
+
 def get_uris(
     source: Sequence[str], output_dir: str, config: Mapping[str, Any], output_ext: str
 ):
@@ -46,7 +49,7 @@ def create_output_path(input_file, output_dir) -> str:
 
     def iter_paths(sequence) -> Iterator[Tuple]:
         for uri in sequence:
-            if uri.endswith((".tiff", ".tif", ".tdb")):
+            if uri.endswith(_SUPPORTED_EXTENSIONS):
                 yield uri, create_output_path(uri, output_dir)
 
     if len(source) == 1: