diff --git a/lib/krb5/krb5.h b/lib/krb5/krb5.h
index 63f100b11..6c9e73bef 100644
--- a/lib/krb5/krb5.h
+++ b/lib/krb5/krb5.h
@@ -414,6 +414,7 @@ typedef struct krb5_keytab_entry {
 typedef struct krb5_kt_cursor {
     int fd;
     krb5_storage *sp;
+    void *data;
 } krb5_kt_cursor;
 
 struct krb5_keytab_data;