1 files changed, 1 insertions, 0 deletions
diff --git a/monitor.c b/monitor.c
index 3650ceb574..5c5cbe254a 100644
--- a/monitor.c
+++ b/monitor.c
@@ -42,6 +42,7 @@
 #include "sysemu/numa.h"
 #include "monitor/monitor.h"
 #include "qemu/config-file.h"
+#include "qemu/ctype.h"
 #include "qemu/readline.h"
 #include "ui/console.h"
 #include "ui/input.h"