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-rw-r--r--chocula/database.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/chocula/database.py b/chocula/database.py
index 3840ae3..d4b7a03 100644
--- a/chocula/database.py
+++ b/chocula/database.py
@@ -206,7 +206,7 @@ class IssnDatabase:
print("##### Loading ISSN-L map file...", file=sys.stderr)
with open(issn_map_path, "r") as issn_map_file:
for line in issn_map_file:
- if line.startswith("ISSN") or len(line) == 0:
+ if line.startswith("ISSN") or len(line) == 0 or len(line.split()) < 2:
continue
(issn, issnl) = line.split()[0:2]
self.issn_issnl_map[issn] = issnl