diff --git a/VERSION b/VERSION
index 4433e6a68..58b28afe6 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-nursix-dev-4278-g74651ca70 (2020-12-13 22:25:01)
+nursix-dev-4279-g3970aa754 (2020-12-14 00:03:14)
diff --git a/modules/templates/DRKCM/helpers.py b/modules/templates/DRKCM/helpers.py
index eae5e1616..fb8b28079 100644
--- a/modules/templates/DRKCM/helpers.py
+++ b/modules/templates/DRKCM/helpers.py
@@ -216,9 +216,10 @@ def user_mailmerge_fields(resource, record):
                             ctable.value,
                             orderby = (ctable.priority, ~(ctable.modified_on)),
                             )
-    rank = lambda row: row.priority * 10 + priority[row.contact_method]
-    numbers = sorted(((row.value, rank(row)) for row in rows), key = lambda i: i[1])
-    data["Telefon"] = numbers[0][0]
+    if rows:
+        rank = lambda row: row.priority * 10 + priority[row.contact_method]
+        numbers = sorted(((row.value, rank(row)) for row in rows), key = lambda i: i[1])
+        data["Telefon"] = numbers[0][0]
 
     return data