X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/45216b83b108a3c48cdd8b1aaf898ccd93188507..c1966ec1c6a63b81202131ad372bb4b6bc45742c:/services/api/lib/has_uuid.rb

diff --git a/services/api/lib/has_uuid.rb b/services/api/lib/has_uuid.rb
index 3bd330edca..481d27a037 100644
--- a/services/api/lib/has_uuid.rb
+++ b/services/api/lib/has_uuid.rb
@@ -36,7 +36,9 @@ module HasUuid
   end
 
   def destroy_permission_links
-    Link.destroy_all(['link_class=? and (head_uuid=? or tail_uuid=?)',
-                      'permission', uuid, uuid])
+    if uuid
+      Link.destroy_all(['link_class=? and (head_uuid=? or tail_uuid=?)',
+                        'permission', uuid, uuid])
+    end
   end
 end