diff -r 4cab5edc2950 -r 5d043a159d5c src/hotspot/share/jfr/dcmd/jfrDcmds.hpp
--- a/src/hotspot/share/jfr/dcmd/jfrDcmds.hpp	Fri May 17 15:53:21 2019 +0200
+++ b/src/hotspot/share/jfr/dcmd/jfrDcmds.hpp	Fri May 17 16:02:27 2019 +0200
@@ -90,6 +90,7 @@
   DCmdArgument<char*> _filename;
   DCmdArgument<NanoTimeArgument> _maxage;
   DCmdArgument<MemorySizeArgument> _maxsize;
+  DCmdArgument<NanoTimeArgument> _flush;
   DCmdArgument<bool> _dump_on_exit;
   DCmdArgument<bool> _path_to_gc_roots;