diff --git a/entities.py b/entities.py
index a8feab1628f6ab8e37860030d3aec3fa4ff56dbb_ZW50aXRpZXMucHk=..12fe2b633c0c716f4c972e6b82b42bf03ffdf51c_ZW50aXRpZXMucHk= 100644
--- a/entities.py
+++ b/entities.py
@@ -19,4 +19,4 @@
     def actual_url(self):
         if not self.embed:
             return self.url
-        return self._cw.build_url('embed', url=self.url, rql=self._cw.form.get('rql'))
+        return self._cw.build_url('embed', url=self.url, rql=self._cw.form.get('rql') or u'')