diff --git a/rwx/fs/__init__.py b/rwx/fs/__init__.py
index 2a6af2c..e769358 100644
--- a/rwx/fs/__init__.py
+++ b/rwx/fs/__init__.py
@@ -15,7 +15,7 @@ def create_image(file_path: str, size_bytes: int):
 
 
 def empty_file(path: str):
-    write(path, str())
+    write(path, "")
 
 
 def get_mount_uuid(path: str):