1 files changed, 1 insertions, 1 deletions
diff --git a/monitor.h b/monitor.h
index 2d478fc..fc80bcb 100644
--- a/monitor.h
+++ b/monitor.h
@@ -53,7 +53,7 @@ int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
 
 int monitor_get_fd(Monitor *mon, const char *fdname);
 
-void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap);
+int monitor_vprintf(Monitor *mon, const char *fmt, va_list ap);
 void monitor_printf(Monitor *mon, const char *fmt, ...)
     __attribute__ ((__format__ (__printf__, 2, 3)));
 void monitor_print_filename(Monitor *mon, const char *filename);