diff --git a/src/zbmath_rest2oai/getAsXml.py b/src/zbmath_rest2oai/getAsXml.py
index af7c560..a6e3683 100644
--- a/src/zbmath_rest2oai/getAsXml.py
+++ b/src/zbmath_rest2oai/getAsXml.py
@@ -23,4 +23,4 @@ def final_xml2(de):
             # Bugfix for wired XML output such as the string None or </>
             [], '', [None], None
         ])
-    )
\ No newline at end of file
+    )