diff --git a/python/pysrc/kaskada/sources/source.py b/python/pysrc/kaskada/sources/source.py
index e07277730..92dd24cda 100644
--- a/python/pysrc/kaskada/sources/source.py
+++ b/python/pysrc/kaskada/sources/source.py
@@ -93,6 +93,6 @@ def _validate_column(field_name: Optional[str], schema: pa.Schema) -> None:
 
     @staticmethod
     def _get_absolute_path(path: Optional[str]) -> Optional[str]:
-        if path is None or path.startswith("/"):
+        if path is None or os.path.isabs(path):
             return path
-        return os.getcwd() + "/" + path
+        return os.path.abspath(path)