diff --git a/apps/docs/public/openapi.yaml b/apps/docs/public/openapi.yaml
index d6a168d18..b96b18c13 100644
--- a/apps/docs/public/openapi.yaml
+++ b/apps/docs/public/openapi.yaml
@@ -432,6 +432,20 @@ components:
             primary_file:
               type: string
               description: The multipart field name of the primary file
+            environment:
+              type: string
+              enum:
+                - client_and_server
+                - client_only
+                - client_only_server_optional
+                - singleplayer_only
+                - server_only
+                - server_only_client_optional
+                - dedicated_server_only
+                - client_or_server
+                - client_or_server_prefers_both
+                - unknown
+              description: The environment that this version is for.
           required:
             - file_parts
             - project_id