diff --git a/poezio/windows/bookmark_forms.py b/poezio/windows/bookmark_forms.py
index 4ec1259e..a0e57cc7 100644
--- a/poezio/windows/bookmark_forms.py
+++ b/poezio/windows/bookmark_forms.py
@@ -38,7 +38,7 @@ class BookmarkJIDInput(FieldInput, Input):
             jid = JID(field.jid)
         except InvalidJID:
             jid = JID('')
-        jid.resource = field.nick or ''
+        jid.resource = field.nick or None
         self.text = jid.full
         self.pos = 0
         self.view_pos = 0