diff --git a/scripts/tracetool/format/ust_events_c.py b/scripts/tracetool/format/ust_events_c.py
index bc970936be..9967c7a82e 100644
--- a/scripts/tracetool/format/ust_events_c.py
+++ b/scripts/tracetool/format/ust_events_c.py
@@ -21,6 +21,8 @@ def generate(events, backend):
               if "disabled" not in e.properties]
 
     out('/* This file is autogenerated by tracetool, do not edit. */',
+        '',
+        '#include "qemu/osdep.h"',
         '',
         '#define TRACEPOINT_DEFINE',
         '#define TRACEPOINT_CREATE_PROBES',