diff --git a/src/calibre/library/save_to_disk.py b/src/calibre/library/save_to_disk.py index 3179551b45..20c0a7e59c 100644 --- a/src/calibre/library/save_to_disk.py +++ b/src/calibre/library/save_to_disk.py @@ -131,6 +131,8 @@ class SafeFormat(TemplateFormatter): return self.composite_values[key] if key in kwargs: val = kwargs[key] + if isinstance(val, list): + val = ','.join(val) return val.replace('/', '_').replace('\\', '_') return '' except: