diff --git a/util/mkdef.pl b/util/mkdef.pl
index 07bf4103e..e9e21caa7 100755
--- a/util/mkdef.pl
+++ b/util/mkdef.pl
@@ -175,6 +175,7 @@ $crypto.=" crypto/mdc2/mdc2.h" unless $no_mdc2;
 $crypto.=" crypto/sha/sha.h" unless $no_sha;
 $crypto.=" crypto/ripemd/ripemd.h" unless $no_ripemd;
 $crypto.=" crypto/rijndael/rijndael.h" unless $no_rijndael;
+$crypto.=" crypto/rijndael/rd_fst.h" unless $no_rijndael;
 
 $crypto.=" crypto/bn/bn.h";
 $crypto.=" crypto/rsa/rsa.h" unless $no_rsa;