diff --git a/bigquery/google/cloud/bigquery/job.py b/bigquery/google/cloud/bigquery/job.py
index 5eba2721da04..7766c120c5cd 100644
--- a/bigquery/google/cloud/bigquery/job.py
+++ b/bigquery/google/cloud/bigquery/job.py
@@ -70,7 +70,8 @@ class SourceFormat(_EnumProperty):
     CSV = 'CSV'
     DATASTORE_BACKUP = 'DATASTORE_BACKUP'
     NEWLINE_DELIMITED_JSON = 'NEWLINE_DELIMITED_JSON'
-    ALLOWED = (CSV, DATASTORE_BACKUP, NEWLINE_DELIMITED_JSON)
+    AVRO = 'AVRO'
+    ALLOWED = (CSV, DATASTORE_BACKUP, NEWLINE_DELIMITED_JSON, AVRO)
 
 
 class WriteDisposition(_EnumProperty):