diff --git a/lib/hdb/keys.c b/lib/hdb/keys.c
index b5b99d872..b0af2a53b 100644
--- a/lib/hdb/keys.c
+++ b/lib/hdb/keys.c
@@ -69,7 +69,7 @@ hdb_free_keys (krb5_context context, int len, Key *keys)
  */
 
 /* the 3 DES types must be first */
-const krb5_enctype all_etypes[] = { 
+static const krb5_enctype all_etypes[] = { 
     ETYPE_DES_CBC_MD5,
     ETYPE_DES_CBC_MD4,
     ETYPE_DES_CBC_CRC,