diff --git a/src/rethink/models/files/unzip.py b/src/rethink/models/files/unzip.py
index 7f6f506..b52cd6d 100644
--- a/src/rethink/models/files/unzip.py
+++ b/src/rethink/models/files/unzip.py
@@ -1,5 +1,4 @@
 import io
-import os.path
 import zipfile
 from typing import Dict
 
@@ -13,11 +12,11 @@ def unzip_file(zip_bytes: bytes) -> Dict[str, bytes]:
                 _filepath = filepath.encode('cp437').decode('utf-8')
             except UnicodeEncodeError:
                 _filepath = filepath
-            sp = _filepath.split(os.path.sep)
+            sp = _filepath.split("/")
             if sp[0] in ["__MACOSX", ".DS_Store"]:
                 continue
             if len(sp) > 1:
-                _filepath = os.path.sep.join(sp[1:])
+                _filepath = "/".join(sp[1:])
             if _filepath.strip() == "" or _filepath.startswith("."):
                 continue
             extracted_files[_filepath] = ref.read(filepath)
diff --git a/tests/test_models_files_unzip.py b/tests/test_models_files_unzip.py
index b7b69c7..7f47a84 100644
--- a/tests/test_models_files_unzip.py
+++ b/tests/test_models_files_unzip.py
@@ -29,7 +29,10 @@ def test_unzip_folder(self):
         with open("test.zip", "rb") as f:
             extracted_files = unzip.unzip_file(f.read())
         for filename, content in extracted_files.items():
-            self.assertEqual(self.orig_folder_data[os.path.join("a", filename)], content)
+            self.assertEqual(
+                self.orig_folder_data[os.path.join("a", filename)],
+                content,
+                msg=str(self.orig_folder_data))
         os.remove("test.zip")
 
     def test_unzip_files(self):