diff --git a/lib/krb5/version-script.map b/lib/krb5/version-script.map
index 9bc19a37f..ba5ff0bf6 100644
--- a/lib/krb5/version-script.map
+++ b/lib/krb5/version-script.map
@@ -175,6 +175,7 @@ HEIMDAL_KRB5_2.0 {
 		krb5_create_checksum;
 		krb5_create_checksum_iov;
 		krb5_crypto_destroy;
+		krb5_crypto_fx_cf2;
 		krb5_crypto_get_checksum_type;
 		krb5_crypto_getblocksize;
 		krb5_crypto_getconfoundersize;