From 2f328e570c2cc509ca3cd44f4a10dbeb07b921fb Mon Sep 17 00:00:00 2001
From: Balthasar Reuter <balthasar.reuter@ecmwf.int>
Date: Fri, 10 Mar 2023 20:38:30 +0000
Subject: [PATCH] Fix get_location_hash

---
 loki/lint/utils.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/loki/lint/utils.py b/loki/lint/utils.py
index 82714b4cd..8ffdd98b6 100644
--- a/loki/lint/utils.py
+++ b/loki/lint/utils.py
@@ -156,7 +156,7 @@ def get_location_hash(location):
         The hash as a string or, if no hash can be created for :data:`location`,
         `None` is returned.
     """
-    if getattr(location, 'source') and location.source.string:
+    if getattr(location, 'source', None) and location.source.string:
         first_line = location.source.string[:location.source.string.find('\n')]
         line_hash = str(md5(first_line.encode()).hexdigest())
         return line_hash