diff --git a/opacket.c b/opacket.c
index fca48e5f5..e637d7a71 100644
--- a/opacket.c
+++ b/opacket.c
@@ -3,6 +3,8 @@
 
 #include "includes.h"
 
+#include <stdarg.h>
+
 #include "ssherr.h"
 #include "packet.h"
 #include "log.h"
diff --git a/ssh-keygen.c b/ssh-keygen.c
index 822e7e7c4..3c9677057 100644
--- a/ssh-keygen.c
+++ b/ssh-keygen.c
@@ -38,6 +38,7 @@
 #include <unistd.h>
 #include <limits.h>
 #include <locale.h>
+#include <time.h>
 
 #include "xmalloc.h"
 #include "sshkey.h"