diff --git a/oxdata/lookup/models.py b/oxdata/lookup/models.py
index 22885ec..246738f 100644
--- a/oxdata/lookup/models.py
+++ b/oxdata/lookup/models.py
@@ -43,7 +43,7 @@ class MovieId(models.Model):
     imdb_id = models.CharField(max_length=7, unique=True, blank=True, null=True,  default=None)
 
     amg_id = models.IntegerField(unique=True, blank=True, null=True,  default=None)
-    archiveorg_id = models.IntegerField(unique=True, blank=True, null=True,  default=None)
+    archiveorg_id = models.CharField(unique=True, max_length=255, blank=True, null=True,  default=None)
     wikipedia_id = models.CharField(unique=True, max_length=255, blank=True, null=True,  default=None)
     criterion_id = models.IntegerField(unique=True, blank=True, null=True,  default=None)
     impawards_id = models.CharField(max_length=255, unique=True, blank=True, null=True,  default=None)