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-rw-r--r--archaeological_operations/models.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/archaeological_operations/models.py b/archaeological_operations/models.py
index 399b536e2..675666dbb 100644
--- a/archaeological_operations/models.py
+++ b/archaeological_operations/models.py
@@ -163,6 +163,7 @@ class Operation(BaseHistorizedItem, OwnPerms):
def year_index(self):
if not self.operation_code:
return ""
+ lbl = unicode(self.operation_code)
lbl = u"%d-%s%s" % (self.year, (3-len(lbl))*"0", lbl)
return lbl