diff --git a/lib/hdb/hdb_locl.h b/lib/hdb/hdb_locl.h
index eedb52ba6..8af70aeb4 100644
--- a/lib/hdb/hdb_locl.h
+++ b/lib/hdb/hdb_locl.h
@@ -48,6 +48,7 @@
 #include <stdlib.h>
 #include <errno.h>
 #include <sys/file.h>
+#include <roken.h>
 
 #include <krb5.h>
 #include <hdb.h>