diff --git a/appl/ftp/ftpd/ftpd_locl.h b/appl/ftp/ftpd/ftpd_locl.h
index fcdd8b141..9b4fa91c3 100644
--- a/appl/ftp/ftpd/ftpd_locl.h
+++ b/appl/ftp/ftpd/ftpd_locl.h
@@ -150,6 +150,10 @@
 #include <kafs.h>
 #endif
 
+#ifdef KRB5
+#include <krb5.h>
+#endif
+
 #ifdef OTP
 #include <otp.h>
 #endif