diff --git a/src/common/connection_handlers.py b/src/common/connection_handlers.py
index c4dc05a86..1117de348 100644
--- a/src/common/connection_handlers.py
+++ b/src/common/connection_handlers.py
@@ -1417,7 +1417,11 @@ ConnectionJingle, ConnectionIBBytestream):
         labels = {}
         ll = []
         for item in items:
-            label = item.getTag('displaymarking').getData()
+            display_tag = item.getTag('displaymarking')
+            if display_tag:
+                label = display_tag.getData()
+            else:
+                label = ''
             labels[label] = item
             ll.append(label)
         if to not in self.seclabel_catalogues: