diff --git a/openssh/bufaux.c b/openssh/bufaux.c
index f5a81ed..337d22d 100644
--- a/openssh/bufaux.c
+++ b/openssh/bufaux.c
@@ -18,6 +18,7 @@
 /* Emulation wrappers for legacy OpenSSH buffer API atop sshbuf */
 
 #include "includes.h"
+#include "sftp.h"
 
 #include <sys/types.h>
 
diff --git a/openssh/buffer.c b/openssh/buffer.c
index 823d03c..bfa9eba 100644
--- a/openssh/buffer.c
+++ b/openssh/buffer.c
@@ -19,6 +19,7 @@
 /* Emulation wrappers for legacy OpenSSH buffer API atop sshbuf */
 
 #include "includes.h"
+#include "sftp.h"
 
 #include <sys/types.h>
 
diff --git a/openssh/misc.c b/openssh/misc.c
index 0f99561..67b2f15 100644
--- a/openssh/misc.c
+++ b/openssh/misc.c
@@ -25,6 +25,7 @@
  */
 
 #include "includes.h"
+#include "sftp.h"
 
 #include <sys/types.h>
 #include <sys/ioctl.h>
diff --git a/openssh/xmalloc.c b/openssh/xmalloc.c
index 7baa23f..185c1bb 100644
--- a/openssh/xmalloc.c
+++ b/openssh/xmalloc.c
@@ -14,6 +14,7 @@
  */
 
 #include "includes.h"
+#include "sftp.h"
 
 #include <sys/param.h>
 #include <stdarg.h>