diff --git a/init.c b/init.c
index 60ba299..e8f3a9b 100644
--- a/init.c
+++ b/init.c
@@ -408,7 +408,7 @@
 	/*
 	 * only really works with 1 file
 	 */
-	if (o->zone_size && o->open_files == 1)
+	if (o->zone_size && o->open_files > 1)
 		o->zone_size = 0;
 
 	/*