diff --git a/subiquity/common/apidef.py b/subiquity/common/apidef.py
index 6e71246d8..4d289d06e 100644
--- a/subiquity/common/apidef.py
+++ b/subiquity/common/apidef.py
@@ -126,6 +126,7 @@ def POST() -> None:
                 """Restart the server process."""
 
         class ssh_info:
+            @allowed_before_start
             def GET() -> Optional[LiveSessionSSHInfo]:
                 ...