diff --git a/docs/api-reference/Package.md b/docs/api-reference/Package.md
index 0c1f8f94b17..6ef8f02e914 100644
--- a/docs/api-reference/Package.md
+++ b/docs/api-reference/Package.md
@@ -194,7 +194,7 @@ no such entry exists.
 Sets user metadata on this Package.
 
 
-## Package.build(self, name, registry=None, message=None, \*, workflow=Ellipsis)  {#Package.build}
+## Package.build(self, name, registry=None, message=None, \*, workflow=Ellipsis, put\_options=None)  {#Package.build}
 
 Serializes this package to a registry.
 
@@ -208,6 +208,8 @@ __Arguments__
     If not specified, the default workflow will be used.
 * __For details see__:  https://docs.quiltdata.com/advanced-usage/workflows
 
+* __put_options__:  optional arguments to pass to the PutObject operation
+
 
 __Returns__