diff --git a/src/hdf5_lib.py b/src/hdf5_lib.py
index d46364f..fe6b73e 100644
--- a/src/hdf5_lib.py
+++ b/src/hdf5_lib.py
@@ -131,7 +131,7 @@ def create_hdf5_file_from_filesystem_path(path_to_input_directory: str,
         raise  ValueError('path_to_input_directory needs to be specified using forward slashes "/".' )
 
     #path_to_output_directory = os.path.join(path_to_input_directory,'..')
-    path_to_input_directory = os.path.normpath(path_to_input_directory).strip(os.sep)    
+    path_to_input_directory = os.path.normpath(path_to_input_directory).rstrip(os.sep)    
 
     
     for i, keyword in enumerate(select_dir_keywords):