diff --git a/src/stdlib_flags.h b/src/stdlib_flags.h
index ee225c1734..b647d85f37 100644
--- a/src/stdlib_flags.h
+++ b/src/stdlib_flags.h
@@ -1,7 +1,5 @@
 #include "util/options.h"
 
-// update stage0
-
 namespace lean {
 options get_default_options() {
     options opts;