diff --git a/qemu-common.h b/qemu-common.h
index b851b20c51..39fabc9e0f 100644
--- a/qemu-common.h
+++ b/qemu-common.h
@@ -39,6 +39,7 @@ typedef struct Monitor Monitor;
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <assert.h>
+#include <signal.h>
 
 #ifdef _WIN32
 #include "qemu-os-win32.h"