diff --git a/tabellio/pcfdb/sync.py b/tabellio/pcfdb/sync.py
index ad59705..864b28c 100644
--- a/tabellio/pcfdb/sync.py
+++ b/tabellio/pcfdb/sync.py
@@ -252,6 +252,8 @@ class SyncFromPcfDbView(BrowserView):
         if com_id in self._commission_intids:
             return self._commission_intids.get(com_id)
         obj = self.get_commission(com_id)
+        if obj is None:
+            return None
         try:
             intid = self.intids.getId(obj)
         except KeyError:
@@ -1087,7 +1089,9 @@ class SyncFromPcfDbView(BrowserView):
                 object.authors = []
 
             try:
-                object.commissions = [RelationValue(self.get_commission_intid(x)) for x in curcom or []]
+                commission_ids = [self.get_commission_intid(x) for x in (curcom or []) if x not in ('001291649,')]
+                commission_ids = [x for x in commission_ids if x]
+                object.commissions = [RelationValue(x) for x in commission_ids]
             except AttributeError:
                 pass