diff --git a/app/jobs/activity_pub/process_job.rb b/app/jobs/activity_pub/process_job.rb
index 94799735..9b7c30fc 100644
--- a/app/jobs/activity_pub/process_job.rb
+++ b/app/jobs/activity_pub/process_job.rb
@@ -66,7 +66,7 @@ class ActivityPub
       @object ||= ::ActivityPub::Object.lock.find_or_initialize_by(uri: object_uri).tap do |o|
         o.content = original_object if object_embedded?
 
-        o.lock!
+        o.lock! if o.persisted?
         o.save!
 
         # XXX: el objeto necesita ser guardado antes de poder
@@ -96,7 +96,7 @@ class ActivityPub
         .find_or_initialize_by(uri: original_activity[:id], activity_pub: activity_pub, actor: actor).tap do |a|
           a.content = original_activity.dup
           a.content[:object] = object.uri
-          a.lock!
+          a.lock! if o.persisted?
           a.save!
         end
     end
@@ -115,7 +115,7 @@ class ActivityPub
 
         site.instance_moderations.lock.find_or_create_by(instance: a.instance)
 
-        a.lock!
+        a.lock! if o.persisted?
         a.save!
 
         site.actor_moderations.lock.find_or_create_by(actor: a)