diff --git a/geospaas_processing/downloaders.py b/geospaas_processing/downloaders.py
index ba33c7e..143433e 100644
--- a/geospaas_processing/downloaders.py
+++ b/geospaas_processing/downloaders.py
@@ -346,6 +346,8 @@ def get_file_name(cls, url, connection, **kwargs):
                     and url_file_name.endswith('.nc')):
                 return url_file_name
 
+        LOGGER.error("Could not find file name from HTTP response for %s: %s, %s, %s",
+                     url, connection.status_code, connection.reason, connection.headers)
         return ''
 
     @classmethod