diff --git a/scripts/generate_errors.pl b/scripts/generate_errors.pl
index ac0fbff..36ee60b 100755
--- a/scripts/generate_errors.pl
+++ b/scripts/generate_errors.pl
@@ -30,7 +30,7 @@
 my $error_format_file = $data_dir.'/error.fmt';
 
 my @low_level_modules = qw( AES ARC4 ASN1 BASE64 BIGNUM BLOWFISH
-                            CAMELLIA CCM CMAC CTR_DRBG DES
+                            CAMELLIA CCM CHACHA20 CMAC CTR_DRBG DES
                             ENTROPY GCM HMAC_DRBG MD2 MD4 MD5
                             NET OID PADLOCK PBKDF2 RIPEMD160
                             SHA1 SHA256 SHA512 THREADING XTEA );