diff --git a/src/memory/memory.py b/src/memory/memory.py
index 1124f98c..461a964a 100644
--- a/src/memory/memory.py
+++ b/src/memory/memory.py
@@ -556,6 +556,9 @@ class Params(object):
                             if not self.checkSecurityLimit(node, security_limit):
                                 dest_cat.removeChild(node)
                                 continue
+                            if not self.checkApp(node, app):
+                                dest_cat.removeChild(node)
+                                continue
                             dest_params[node.getAttribute('name')] = node
                         new_node = True
                     else:
@@ -633,7 +636,7 @@ class Params(object):
         profile = self.getProfileName(profile_key)
         if not profile:
             error(_("Asking params for inexistant profile"))
-            return ""
+            return defer.succeed("")
 
         def returnXML(prof_xml):
             return_xml = prof_xml.toxml()