--- postfix-2.10.2.orig/src/util/sys_defs.h	2012-09-25 01:53:56.000000000 +0200
+++ postfix-2.10.2/src/util/sys_defs.h	2013-10-10 16:30:37.000000000 +0200
@@ -753,8 +753,8 @@ extern int initgroups(const char *, int)
 #define DEF_MAILBOX_LOCK "fcntl, dotlock"	/* RedHat >= 4.x */
 #define HAS_FSYNC
 #define HAS_DB
-#define DEF_DB_TYPE	"hash"
-#define ALIAS_DB_MAP	"hash:/etc/aliases"
+#define DEF_DB_TYPE    "cdb"
+#define ALIAS_DB_MAP   "cdb:/etc/postfix/aliases"
 #ifndef NO_NIS
 #define HAS_NIS
 #endif