diff --git a/lib/gssapi/mech/mech_locl.h b/lib/gssapi/mech/mech_locl.h
index 655300b34..88aef70fa 100644
--- a/lib/gssapi/mech/mech_locl.h
+++ b/lib/gssapi/mech/mech_locl.h
@@ -49,6 +49,8 @@
 #include <gssapi_asn1.h>
 #include <der.h>
 
+#include <roken.h>
+
 #include <gssapi.h>
 #include <gssapi_mech.h>