diff --git a/dde_rump/src/server/rump_fs/main.cc b/dde_rump/src/server/rump_fs/main.cc
index f83e1ea32..65bd63314 100644
--- a/dde_rump/src/server/rump_fs/main.cc
+++ b/dde_rump/src/server/rump_fs/main.cc
@@ -451,6 +451,6 @@ struct File_system::Main
  **********************/
 
 char const *   Server::name()                            { return "rump_fs_ep"; }
-Genode::size_t Server::stack_size()                      { return 2048 * sizeof(long); }
+Genode::size_t Server::stack_size()                      { return 4 * 1024 * sizeof(long); }
 void           Server::construct(Server::Entrypoint &ep) { static File_system::Main inst(ep); }