diff --git a/lib/hdb/version-script.map b/lib/hdb/version-script.map
index 6e079f0ff..a21f787cf 100644
--- a/lib/hdb/version-script.map
+++ b/lib/hdb/version-script.map
@@ -82,6 +82,7 @@ HEIMDAL_HDB_1.0 {
 		decode_HDB_Ext_Aliases;
 		decode_HDB_Ext_PKINIT_acl;
 		decode_HDB_extension;
+		decode_Key;
 		encode_HDB_Ext_Aliases;
 		encode_HDB_Ext_PKINIT_acl;
 		encode_HDB_extension;