diff --git a/src/knot/conf/conf.c b/src/knot/conf/conf.c
index 87c9a0068041f74d8d918b6bb86e006e225069d0..fae998b632b37e9930d4395f0e94f53d54e73e4d 100644
--- a/src/knot/conf/conf.c
+++ b/src/knot/conf/conf.c
@@ -295,7 +295,7 @@ static int conf_process(conf_t *conf)
 
 		// Default zone file
 		if (zone->file == NULL) {
-			zone->file = strcdup(zone->name, ".zone");
+			zone->file = strcdup(zone->name, "zone");
 			if (!zone->file) {
 				ret = KNOT_ENOMEM;
 				continue;